PackagesCanonicalsLogsProblems
    Packages
    ca.on.oh-ereferral-econsult@0.12.0-alpha1.0.2
    http://ehealthontario.ca/fhir/StructureDefinition/ca-on-eReferral-profile-Task
{
  "description": "A task resource describes an activity that can be performed and tracks the state of completion of that activity. It is a representation that an activity should be or has been initiated, and eventually, represents the successful or unsuccessful completion of that activity.",
  "_filename": "EReferralTask.json",
  "package_name": "ca.on.oh-ereferral-econsult",
  "date": null,
  "derivation": "constraint",
  "publisher": null,
  "fhirVersion": "4.0.1",
  "name": "EReferralTask",
  "abstract": false,
  "type": "Task",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "title": "Task",
  "package_version": "0.12.0-alpha1.0.2",
  "snapshot": {
    "element": [ {
      "constraint": [ {
        "key": "dom-2",
        "human": "If the resource is contained in another resource, it SHALL NOT contain nested Resources",
        "xpath": "not(parent::f:contained and f:contained)",
        "source": "http://hl7.org/fhir/StructureDefinition/DomainResource",
        "severity": "error",
        "expression": "contained.contained.empty()"
      }, {
        "key": "dom-4",
        "human": "If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated",
        "xpath": "not(exists(f:contained/*/f:meta/f:versionId)) and not(exists(f:contained/*/f:meta/f:lastUpdated))",
        "source": "http://hl7.org/fhir/StructureDefinition/DomainResource",
        "severity": "error",
        "expression": "contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()"
      }, {
        "key": "dom-3",
        "human": "If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource",
        "xpath": "not(exists(for $id in f:contained/*/f:id/@value return $contained[not(parent::*/descendant::f:reference/@value=concat('#', $contained/*/id/@value) or descendant::f:reference[@value='#'])]))",
        "source": "http://hl7.org/fhir/StructureDefinition/DomainResource",
        "severity": "error",
        "expression": "contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()"
      }, {
        "key": "dom-6",
        "human": "A resource should have narrative for robust management",
        "xpath": "exists(f:text/h:div)",
        "source": "http://hl7.org/fhir/StructureDefinition/DomainResource",
        "severity": "warning",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice",
          "valueBoolean": true
        }, {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice-explanation",
          "valueMarkdown": "When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time."
        } ],
        "expression": "text.`div`.exists()"
      }, {
        "key": "dom-5",
        "human": "If a resource is contained in another resource, it SHALL NOT have a security label",
        "xpath": "not(exists(f:contained/*/f:meta/f:security))",
        "source": "http://hl7.org/fhir/StructureDefinition/DomainResource",
        "severity": "error",
        "expression": "contained.meta.security.empty()"
      }, {
        "key": "inv-1",
        "human": "Last modified date must be greater than or equal to authored-on date.",
        "xpath": "not(exists(f:lastModified/@value)) or not(exists(f:authoredOn/@value)) or f:lastModified/@value >= f:authoredOn/@value",
        "source": "http://hl7.org/fhir/StructureDefinition/Task",
        "severity": "error",
        "expression": "lastModified.exists().not() or authoredOn.exists().not() or lastModified >= authoredOn"
      } ],
      "path": "Task",
      "min": 0,
      "definition": "A task to be performed.",
      "short": "A task to be performed",
      "mapping": [ {
        "map": "Entity. Role, or Act",
        "identity": "rim"
      }, {
        "map": "Request, Event",
        "identity": "workflow"
      }, {
        "map": "ControlAct[moodCode=INT]",
        "identity": "rim"
      } ],
      "max": "*",
      "id": "Task",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Task"
      }
    }, {
      "path": "Task.id",
      "min": 0,
      "definition": "The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.",
      "short": "Logical id of this artifact",
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "max": "1",
      "id": "Task.id",
      "comment": "The only time that a resource does not have an id is when it is being submitted to the server using a create operation.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Resource.id"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.meta",
      "min": 1,
      "definition": "The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.",
      "short": "Metadata about the resource",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Meta"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.meta",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Resource.meta"
      },
      "isSummary": true
    }, {
      "path": "Task.meta.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.meta.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.meta.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.meta.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.meta.versionId",
      "min": 0,
      "definition": "The version specific identifier, as it appears in the version portion of the URL. This value changes when the resource is created, updated, or deleted.",
      "short": "Version specific identifier",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "id"
      } ],
      "max": "1",
      "id": "Task.meta.versionId",
      "condition": [ "ele-1" ],
      "comment": "The server assigns this value, and ignores what the client specifies, except in the case that the server is imposing version integrity on updates/deletes.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Meta.versionId"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.meta.lastUpdated",
      "min": 0,
      "definition": "When the resource last changed - e.g. when the version changed.",
      "short": "When the resource version last changed",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "instant"
      } ],
      "max": "1",
      "id": "Task.meta.lastUpdated",
      "condition": [ "ele-1" ],
      "comment": "This value is always populated except when the resource is first being created. The server / resource manager sets this value; what a client provides is irrelevant. This is equivalent to the HTTP Last-Modified and SHOULD have the same value on a [read](http.html#read) interaction.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Meta.lastUpdated"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.meta.source",
      "min": 0,
      "definition": "A uri that identifies the source system of the resource. This provides a minimal amount of [Provenance](provenance.html#) information that can be used to track or differentiate the source of information in the resource. The source may identify another FHIR server, document, message, database, etc.",
      "short": "Identifies where the resource comes from",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "max": "1",
      "id": "Task.meta.source",
      "condition": [ "ele-1" ],
      "comment": "In the provenance resource, this corresponds to Provenance.entity.what[x]. The exact use of the source (and the implied Provenance.entity.role) is left to implementer discretion. Only one nominated source is allowed; for additional provenance details, a full Provenance resource should be used. \n\nThis element can be used to indicate where the current master source of a resource that has a canonical URL if the resource is no longer hosted at the canonical URL.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Meta.source"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.meta.profile",
      "min": 1,
      "definition": "A list of profiles (references to [StructureDefinition](structuredefinition.html#) resources) that this resource claims to conform to. The URL is a reference to [StructureDefinition.url](structuredefinition-definitions.html#StructureDefinition.url).",
      "short": "Profiles this resource claims to conform to",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "canonical",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/StructureDefinition" ]
      } ],
      "mustSupport": true,
      "max": "*",
      "id": "Task.meta.profile",
      "condition": [ "ele-1" ],
      "comment": "#### **_` FOR eREFERRAL USAGE: The meta.profile = http://ehealthontario.ca/fhir/StructureDefinition/ca-on-eReferral-profile-Task|1.0.1 `_**\r\n\r\nIt is up to the server and/or other infrastructure of policy to determine whether/how these claims are verified and/or updated over time.  The list of profile URLs is a set.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Meta.profile"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.meta.security",
      "min": 0,
      "definition": "Security labels applied to this resource. These tags connect specific resources to the overall security policy and infrastructure.",
      "short": "Security Labels applied to this resource",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE subset one of the sets of component 1-3 or 4-6",
        "identity": "v2"
      }, {
        "map": "CV",
        "identity": "rim"
      }, {
        "map": "fhir:Coding rdfs:subClassOf dt:CDCoding",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "Coding"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "extensible",
        "valueSet": "http://hl7.org/fhir/ValueSet/security-labels",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "SecurityLabels"
        }, {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding",
          "valueBoolean": true
        } ],
        "description": "Security Labels from the Healthcare Privacy and Security Classification System."
      },
      "max": "*",
      "id": "Task.meta.security",
      "condition": [ "ele-1" ],
      "comment": "The security labels can be updated without changing the stated version of the resource. The list of security labels is a set. Uniqueness is based the system/code, and version and display are ignored.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Meta.security"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.meta.tag",
      "min": 0,
      "definition": "Tags applied to this resource. Tags are intended to be used to identify and relate resources to process and workflow, and applications are not required to consider the tags when interpreting the meaning of a resource.",
      "short": "Tags applied to this resource",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE subset one of the sets of component 1-3 or 4-6",
        "identity": "v2"
      }, {
        "map": "CV",
        "identity": "rim"
      }, {
        "map": "fhir:Coding rdfs:subClassOf dt:CDCoding",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "Coding"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "example",
        "valueSet": "http://hl7.org/fhir/ValueSet/common-tags",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "Tags"
        } ],
        "description": "Codes that represent various types of tags, commonly workflow-related; e.g. \"Needs review by Dr. Jones\"."
      },
      "max": "*",
      "id": "Task.meta.tag",
      "condition": [ "ele-1" ],
      "comment": "The tags can be updated without changing the stated version of the resource. The list of tags is a set. Uniqueness is based the system/code, and version and display are ignored.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Meta.tag"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.implicitRules",
      "min": 0,
      "definition": "A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.",
      "isModifier": true,
      "short": "A set of rules under which this content was created",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "max": "1",
      "id": "Task.implicitRules",
      "condition": [ "ele-1" ],
      "comment": "Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Resource.implicitRules"
      },
      "isModifierReason": "This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation",
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.language",
      "min": 0,
      "definition": "The base language in which the resource is written.",
      "short": "Language of the resource content",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "code"
      } ],
      "binding": {
        "strength": "preferred",
        "valueSet": "http://hl7.org/fhir/ValueSet/languages",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-maxValueSet",
          "valueCanonical": "http://hl7.org/fhir/ValueSet/all-languages"
        }, {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "Language"
        }, {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding",
          "valueBoolean": true
        } ],
        "description": "A human language."
      },
      "max": "1",
      "id": "Task.language",
      "condition": [ "ele-1" ],
      "comment": "Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies  to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Resource.language"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.text",
      "min": 0,
      "definition": "A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it \"clinically safe\" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.",
      "short": "Text summary of the resource, for human interpretation",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      }, {
        "map": "Act.text?",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Narrative"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "narrative", "html", "xhtml", "display" ],
      "max": "1",
      "id": "Task.text",
      "condition": [ "ele-1" ],
      "comment": "Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied).  This may be necessary for data from legacy systems where information is captured as a \"text blob\" or where text is additionally entered raw or narrated and encoded information is added later.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "DomainResource.text"
      }
    }, {
      "path": "Task.contained",
      "min": 0,
      "definition": "These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.",
      "short": "Contained, inline Resources",
      "mapping": [ {
        "map": "Entity. Role, or Act",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Resource"
      } ],
      "alias": [ "inline resources", "anonymous resources", "contained resources" ],
      "max": "*",
      "id": "Task.contained",
      "comment": "This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "DomainResource.contained"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "ordered": false,
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "DomainResource.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.extension",
      "min": 0,
      "definition": "Following a consult, used to communicate if a patient needs to be seen in person.",
      "isModifier": false,
      "short": "Optional Extensions Element",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension",
        "profile": [ "http://ehealthontario.ca/fhir/StructureDefinition/ca-on-eConsult-ext-patient-needs-to-be-seen" ]
      } ],
      "mustSupport": true,
      "sliceName": "PatientNeedsToBeSeen",
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "1",
      "id": "Task.extension:PatientNeedsToBeSeen",
      "condition": [ "ele-1" ],
      "comment": "Used to support the eConsult use case where a patient is referred to a care provider. Used for when the care provider responds with an eConsult rather than accept the referral, but the patient wants a referral anyway.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "DomainResource.extension"
      }
    }, {
      "path": "Task.extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.extension:PatientNeedsToBeSeen.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.extension.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.extension:PatientNeedsToBeSeen.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "path": "Task.extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "short": "identifies the meaning of the extension",
      "fixedUri": "http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/CA-eReC-patient-needs-to-be-seen-EXT",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "uri"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.extension:PatientNeedsToBeSeen.url",
      "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.extension.value[x]",
      "min": 0,
      "definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](extensibility.html) for a list).",
      "short": "Value of extension",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "boolean"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.extension:PatientNeedsToBeSeen.value[x]",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.modifierExtension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "DomainResource.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them"
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.identifier",
      "min": 0,
      "definition": "The business identifier for this task.",
      "short": "Task Instance Identifier",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CX / EI (occasionally, more often EI maps to a resource id or a URL)",
        "identity": "v2"
      }, {
        "map": "II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]",
        "identity": "rim"
      }, {
        "map": "Identifier",
        "identity": "servd"
      }, {
        "map": "Request.identifier, Event.identifier",
        "identity": "workflow"
      }, {
        "map": "FiveWs.identifier",
        "identity": "w5"
      }, {
        "map": ".id",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Identifier"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "*",
      "id": "Task.identifier",
      "condition": [ "ele-1" ],
      "base": {
        "max": "*",
        "min": 0,
        "path": "Task.identifier"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.instantiatesCanonical",
      "requirements": "Enables a formal definition of how he task is to be performed, enabling automation.",
      "min": 0,
      "definition": "The URL pointing to a *FHIR*-defined protocol, guideline, orderset or other definition that is adhered to in whole or in part by this Task.",
      "short": "Formal definition of task",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "Request.instantiatesCanonical, Event.instantiatesCanonical",
        "identity": "workflow"
      }, {
        "map": ".outboundRelationship[typeCode=DEFN].target",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "canonical",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/ActivityDefinition" ]
      } ],
      "max": "1",
      "id": "Task.instantiatesCanonical",
      "condition": [ "ele-1" ],
      "comment": "see [Canonical References](references.html#canonical)",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.instantiatesCanonical"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.instantiatesUri",
      "requirements": "Enables a formal definition of how he task is to be performed (e.g. using BPMN, BPEL, XPDL or other formal notation to be associated with a task), enabling automation.",
      "min": 0,
      "definition": "The URL pointing to an *externally* maintained  protocol, guideline, orderset or other definition that is adhered to in whole or in part by this Task.",
      "short": "Formal definition of task",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "Event.instantiatesUrl",
        "identity": "workflow"
      }, {
        "map": ".outboundRelationship[typeCode=DEFN].target",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "max": "1",
      "id": "Task.instantiatesUri",
      "condition": [ "ele-1" ],
      "comment": "see http://en.wikipedia.org/wiki/Uniform_resource_identifier",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.instantiatesUri"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.basedOn",
      "min": 1,
      "definition": "BasedOn refers to a higher-level authorization that triggered the creation of the task.  It references a \"request\" resource such as a ServiceRequest, MedicationRequest, ServiceRequest, CarePlan, etc. which is distinct from the \"request\" resource the task is seeking to fulfill.  This latter resource is referenced by FocusOn.  For example, based on a ServiceRequest (= BasedOn), a task is created to fulfill a procedureRequest ( = FocusOn ) to collect a specimen from a patient.",
      "short": "Request fulfilled by this task",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "Request.basedOn, Event.basedOn",
        "identity": "workflow"
      }, {
        "map": ".outboundRelationship[typeCode=FLFS].target[moodCode=INT]",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://ehealthontario.ca/fhir/StructureDefinition/ca-on-eReferral-profile-ServiceRequest" ]
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.basedOn",
      "condition": [ "ele-1" ],
      "comment": "References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Task.basedOn"
      },
      "isSummary": true
    }, {
      "path": "Task.basedOn.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.basedOn.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.basedOn.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.basedOn.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.basedOn.reference",
      "min": 0,
      "definition": "A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.",
      "short": "Literal reference, Relative, internal or absolute URL",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "mustSupport": true,
      "max": "1",
      "id": "Task.basedOn.reference",
      "condition": [ "ele-1", "ref-1" ],
      "comment": "Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries.   Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure \"/[type]/[id]\" then it should be assumed that the reference is to a FHIR RESTful server.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Reference.reference"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.basedOn.type",
      "min": 0,
      "definition": "The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.\n\nThe type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. \"Patient\" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).",
      "short": "Type the reference refers to (e.g. \"Patient\")",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "binding": {
        "strength": "extensible",
        "valueSet": "http://hl7.org/fhir/ValueSet/resource-types",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "FHIRResourceTypeExt"
        } ],
        "description": "Aa resource (or, for logical models, the URI of the logical model)."
      },
      "max": "1",
      "id": "Task.basedOn.type",
      "condition": [ "ele-1" ],
      "comment": "This element is used to indicate the type of  the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Reference.type"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.basedOn.identifier",
      "min": 0,
      "definition": "An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.",
      "short": "Logical reference, when literal reference is not known",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CX / EI (occasionally, more often EI maps to a resource id or a URL)",
        "identity": "v2"
      }, {
        "map": "II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]",
        "identity": "rim"
      }, {
        "map": "Identifier",
        "identity": "servd"
      }, {
        "map": ".identifier",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Identifier"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.basedOn.identifier",
      "condition": [ "ele-1" ],
      "comment": "When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. \n\nWhen both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference\n\nApplications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.\n\nReference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference.  For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport).  One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Reference.identifier"
      },
      "isSummary": true
    }, {
      "path": "Task.basedOn.identifier.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.basedOn.identifier.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.basedOn.identifier.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.basedOn.identifier.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.basedOn.identifier.use",
      "requirements": "Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.",
      "min": 0,
      "definition": "The purpose of this identifier.",
      "isModifier": true,
      "short": "usual | official | temp | secondary | old (If known)",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "v2"
      }, {
        "map": "Role.code or implied by context",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "code"
      } ],
      "binding": {
        "strength": "required",
        "valueSet": "http://hl7.org/fhir/ValueSet/identifier-use|4.0.1",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "IdentifierUse"
        } ],
        "description": "Identifies the purpose for this identifier, if known ."
      },
      "max": "1",
      "id": "Task.basedOn.identifier.use",
      "condition": [ "ele-1" ],
      "comment": "Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.use"
      },
      "isModifierReason": "This is labeled as \"Is Modifier\" because applications should not mistake a temporary id for a permanent one.",
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.basedOn.identifier.type",
      "requirements": "Allows users to make use of identifiers when the identifier system is not known.",
      "min": 0,
      "definition": "A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.",
      "short": "Description of identifier",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE",
        "identity": "v2"
      }, {
        "map": "CD",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept rdfs:subClassOf dt:CD",
        "identity": "orim"
      }, {
        "map": "CX.5",
        "identity": "v2"
      }, {
        "map": "Role.code or implied by context",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "CodeableConcept"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "extensible",
        "valueSet": "http://hl7.org/fhir/ValueSet/identifier-type",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "IdentifierType"
        }, {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding",
          "valueBoolean": true
        } ],
        "description": "A coded type for an identifier that can be used to determine which identifier to use for a specific purpose."
      },
      "max": "1",
      "id": "Task.basedOn.identifier.type",
      "condition": [ "ele-1" ],
      "comment": "This element deals only with general categories of identifiers.  It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage.   Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.type"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.basedOn.identifier.system",
      "requirements": "There are many sets  of identifiers.  To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.",
      "min": 1,
      "definition": "Establishes the namespace for the value - that is, a URL that describes a set values that are unique.",
      "short": "The namespace for the identifier value",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CX.4 / EI-2-4",
        "identity": "v2"
      }, {
        "map": "II.root or Role.id.root",
        "identity": "rim"
      }, {
        "map": "./IdentifierType",
        "identity": "servd"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "mustSupport": true,
      "max": "1",
      "id": "Task.basedOn.identifier.system",
      "condition": [ "ele-1" ],
      "comment": "Identifier.system is always case sensitive.",
      "example": [ {
        "label": "General",
        "valueUri": "http://www.acme.com/identifiers/patient"
      } ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.system"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.basedOn.identifier.value",
      "min": 1,
      "definition": "The portion of the identifier typically relevant to the user and which is unique within the context of the system.",
      "short": "The value that is unique",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CX.1 / EI.1",
        "identity": "v2"
      }, {
        "map": "II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)",
        "identity": "rim"
      }, {
        "map": "./Value",
        "identity": "servd"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "mustSupport": true,
      "max": "1",
      "id": "Task.basedOn.identifier.value",
      "condition": [ "ele-1" ],
      "comment": "If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986.  The value's primary purpose is computational mapping.  As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.)  A value formatted for human display can be conveyed using the [Rendered Value extension](extension-rendered-value.html). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.",
      "example": [ {
        "label": "General",
        "valueString": "123456"
      } ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.value"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "per-1",
        "human": "If present, start SHALL have a lower value than end",
        "xpath": "not(exists(f:start/@value)) or not(exists(f:end/@value)) or (xs:dateTime(f:start/@value) <= xs:dateTime(f:end/@value))",
        "source": "http://hl7.org/fhir/StructureDefinition/Period",
        "severity": "error",
        "expression": "start.hasValue().not() or end.hasValue().not() or (start <= end)"
      } ],
      "path": "Task.basedOn.identifier.period",
      "min": 0,
      "definition": "Time period during which identifier is/was valid for use.",
      "short": "Time period when id is/was valid for use",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "DR",
        "identity": "v2"
      }, {
        "map": "IVL[lowClosed=\"true\" and highClosed=\"true\"] or URG[lowClosed=\"true\" and highClosed=\"true\"]",
        "identity": "rim"
      }, {
        "map": "CX.7 + CX.8",
        "identity": "v2"
      }, {
        "map": "Role.effectiveTime or implied by context",
        "identity": "rim"
      }, {
        "map": "./StartDate and ./EndDate",
        "identity": "servd"
      } ],
      "type": [ {
        "code": "Period"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.basedOn.identifier.period",
      "condition": [ "ele-1" ],
      "comment": "A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. \"the patient was an inpatient of the hospital for this time range\") or one value from the range applies (e.g. \"give to the patient between these two times\").\n\nPeriod is not used for a duration (a measure of elapsed time). See [Duration](datatypes.html#Duration).",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.period"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.basedOn.identifier.assigner",
      "min": 0,
      "definition": "Organization that issued/manages the identifier.",
      "short": "Organization that issued id (may be just text)",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "CX.4 / (CX.4,CX.9,CX.10)",
        "identity": "v2"
      }, {
        "map": "II.assigningAuthorityName but note that this is an improper use by the definition of the field.  Also Role.scoper",
        "identity": "rim"
      }, {
        "map": "./IdentifierIssuingAuthority",
        "identity": "servd"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Organization" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.basedOn.identifier.assigner",
      "condition": [ "ele-1" ],
      "comment": "The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.assigner"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.basedOn.display",
      "min": 0,
      "definition": "Plain text narrative that identifies the resource in addition to the resource reference.",
      "short": "Text alternative for the resource",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable",
        "valueBoolean": true
      } ],
      "max": "1",
      "id": "Task.basedOn.display",
      "condition": [ "ele-1" ],
      "comment": "This is generally not the same as the Resource.text of the referenced resource.  The purpose is to identify what's being referenced, not to fully describe it.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Reference.display"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.groupIdentifier",
      "requirements": "Billing and/or reporting can be linked to whether multiple requests were created as a single unit.",
      "min": 0,
      "definition": "An identifier that links together multiple tasks and other requests that were created in the same context.",
      "short": "Requisition or grouper id",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CX / EI (occasionally, more often EI maps to a resource id or a URL)",
        "identity": "v2"
      }, {
        "map": "II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]",
        "identity": "rim"
      }, {
        "map": "Identifier",
        "identity": "servd"
      }, {
        "map": "Request.groupIdentifier",
        "identity": "workflow"
      }, {
        "map": ".inboundRelationship[typeCode=COMP].source[moodCode=INT].id",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Identifier"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.groupIdentifier",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.groupIdentifier"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.partOf",
      "requirements": "Allows tasks to be broken down into sub-steps (and this division can occur independent of the original task).",
      "min": 0,
      "definition": "Task that this particular task is part of.",
      "short": "Composite task",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "Event.partOf",
        "identity": "workflow"
      }, {
        "map": ".inboundRelationship[typeCode=COMP].source[moodCode=INT]",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Task" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "*",
      "id": "Task.partOf",
      "condition": [ "ele-1" ],
      "comment": "This should usually be 0..1.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Task.partOf"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.status",
      "requirements": "These states enable coordination of task status with off-the-shelf workflow solutions that support automation of tasks.",
      "min": 1,
      "definition": "The current status of the task.",
      "isModifier": true,
      "short": "draft | requested | received | accepted | +",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "Request.status, Event.status",
        "identity": "workflow"
      }, {
        "map": "FiveWs.status",
        "identity": "w5"
      }, {
        "map": ".statusCode",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "code"
      } ],
      "mustSupport": true,
      "binding": {
        "strength": "required",
        "valueSet": "http://hl7.org/fhir/ValueSet/task-status|4.0.1",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "TaskStatus"
        } ],
        "description": "The current status of the task."
      },
      "max": "1",
      "id": "Task.status",
      "condition": [ "ele-1" ],
      "comment": "Note that FHIR strings SHALL NOT exceed 1MB in size",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Task.status"
      },
      "isModifierReason": "This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid",
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.statusReason",
      "min": 0,
      "definition": "An explanation as to why this task is held, failed, was refused, etc.",
      "short": "Reason for current status",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE",
        "identity": "v2"
      }, {
        "map": "CD",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept rdfs:subClassOf dt:CD",
        "identity": "orim"
      }, {
        "map": ".inboundRelationship[typeCode=SUBJ].source[classCode=CACT, moodCode=EVN, code=\"status change\"].reasonCode",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "CodeableConcept"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "example",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "TaskStatusReason"
        } ],
        "description": "Codes to identify the reason for current status.  These will typically be specific to a particular workflow."
      },
      "max": "1",
      "id": "Task.statusReason",
      "condition": [ "ele-1" ],
      "comment": "This applies to the current status.  Look at the history of the task to see reasons for past statuses.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.statusReason"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.businessStatus",
      "requirements": "There's often a need to track substates of a task - this is often variable by specific workflow implementation.",
      "min": 0,
      "definition": "Contains business-specific nuances of the business state.",
      "short": "E.g. \"New\", \"Pending\", \"Accepted\", etc.",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE",
        "identity": "v2"
      }, {
        "map": "CD",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept rdfs:subClassOf dt:CD",
        "identity": "orim"
      }, {
        "map": ".inboundRelationship[typeCode=SUBJ].source[classCode=OBS, moodCode=EVN, code=\"business status\"]",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "CodeableConcept"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "extensible",
        "valueSet": "http://ehealthontario.ca/fhir/ValueSet/task-business-status",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "TaskBusinessStatus"
        } ],
        "description": "BusinessStatus is used to communicate deployment specific status information. For example: \"New\", \"Pending\", \"Accepted\", etc."
      },
      "max": "1",
      "id": "Task.businessStatus",
      "condition": [ "ele-1" ],
      "comment": "Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.businessStatus"
      },
      "isSummary": true
    }, {
      "path": "Task.businessStatus.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.businessStatus.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.businessStatus.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.businessStatus.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.businessStatus.extension",
      "min": 0,
      "definition": "A reason for why the business reason is as it is.",
      "short": "BusinessStatusReason",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension",
        "profile": [ "http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/CA-eReC-task-business-status-reason-EXT" ]
      } ],
      "mustSupport": true,
      "sliceName": "StatusReason",
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "1",
      "id": "Task.businessStatus.extension:StatusReason",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "path": "Task.businessStatus.extension.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.businessStatus.extension:StatusReason.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.businessStatus.extension.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "0",
      "id": "Task.businessStatus.extension:StatusReason.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "path": "Task.businessStatus.extension.url",
      "min": 1,
      "definition": "Source of the definition for the extension code - a logical name or a URL.",
      "short": "identifies the meaning of the extension",
      "fixedUri": "http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/CA-eReC-task-business-status-reason-EXT",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "uri"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.businessStatus.extension:StatusReason.url",
      "comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.businessStatus.extension.value[x]",
      "min": 1,
      "definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](extensibility.html) for a list).",
      "short": "Value of extension",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "CodeableConcept"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.businessStatus.extension:StatusReason.value[x]",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.businessStatus.coding",
      "requirements": "Allows for alternative encodings within a code system, and translations to other code systems.",
      "min": 0,
      "definition": "A reference to a code defined by a terminology system.",
      "short": "Code defined by a terminology system",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE subset one of the sets of component 1-3 or 4-6",
        "identity": "v2"
      }, {
        "map": "CV",
        "identity": "rim"
      }, {
        "map": "fhir:Coding rdfs:subClassOf dt:CDCoding",
        "identity": "orim"
      }, {
        "map": "C*E.1-8, C*E.10-22",
        "identity": "v2"
      }, {
        "map": "union(., ./translation)",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "Coding"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "example",
        "valueSet": "http://ehealthontario.ca/fhir/ValueSet/task-business-status"
      },
      "max": "*",
      "id": "Task.businessStatus.coding",
      "condition": [ "ele-1" ],
      "comment": "Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information.  Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "CodeableConcept.coding"
      },
      "isSummary": true
    }, {
      "path": "Task.businessStatus.coding.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.businessStatus.coding.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.businessStatus.coding.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.businessStatus.coding.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.businessStatus.coding.system",
      "requirements": "Need to be unambiguous about the source of the definition of the symbol.",
      "min": 0,
      "definition": "The identification of the code system that defines the meaning of the symbol in the code.",
      "short": "Identity of the terminology system",
      "fixedUri": "https://ehealthontario.ca/fhir/CodeSystem/task-business-status",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "C*E.3",
        "identity": "v2"
      }, {
        "map": "./codeSystem",
        "identity": "rim"
      }, {
        "map": "fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "mustSupport": true,
      "max": "1",
      "id": "Task.businessStatus.coding.system",
      "condition": [ "ele-1" ],
      "comment": "The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...).  OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Coding.system"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.businessStatus.coding.version",
      "min": 0,
      "definition": "The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.",
      "short": "Version of the system - if relevant",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "C*E.7",
        "identity": "v2"
      }, {
        "map": "./codeSystemVersion",
        "identity": "rim"
      }, {
        "map": "fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "max": "1",
      "id": "Task.businessStatus.coding.version",
      "condition": [ "ele-1" ],
      "comment": "Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Coding.version"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.businessStatus.coding.code",
      "requirements": "Need to refer to a particular code in the system.",
      "min": 0,
      "definition": "A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).",
      "short": "Symbol in syntax defined by the system",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "C*E.1",
        "identity": "v2"
      }, {
        "map": "./code",
        "identity": "rim"
      }, {
        "map": "fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "code"
      } ],
      "max": "1",
      "id": "Task.businessStatus.coding.code",
      "condition": [ "ele-1" ],
      "comment": "Note that FHIR strings SHALL NOT exceed 1MB in size",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Coding.code"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.businessStatus.coding.display",
      "requirements": "Need to be able to carry a human-readable meaning of the code for readers that do not know  the system.",
      "min": 0,
      "definition": "A representation of the meaning of the code in the system, following the rules of the system.",
      "short": "Representation defined by the system",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "C*E.2 - but note this is not well followed",
        "identity": "v2"
      }, {
        "map": "CV.displayName",
        "identity": "rim"
      }, {
        "map": "fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable",
        "valueBoolean": true
      } ],
      "max": "1",
      "id": "Task.businessStatus.coding.display",
      "condition": [ "ele-1" ],
      "comment": "Note that FHIR strings SHALL NOT exceed 1MB in size",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Coding.display"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.businessStatus.coding.userSelected",
      "requirements": "This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.",
      "min": 0,
      "definition": "Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).",
      "short": "If this coding was chosen directly by the user",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "Sometimes implied by being first",
        "identity": "v2"
      }, {
        "map": "CD.codingRationale",
        "identity": "rim"
      }, {
        "map": "fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map;   fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\\#true a [     fhir:source \"true\";     fhir:target dt:CDCoding.codingRationale\\#O   ]",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "boolean"
      } ],
      "max": "1",
      "id": "Task.businessStatus.coding.userSelected",
      "condition": [ "ele-1" ],
      "comment": "Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Coding.userSelected"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.businessStatus.text",
      "requirements": "The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.",
      "min": 0,
      "definition": "A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.",
      "short": "Plain text representation of the concept",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "C*E.9. But note many systems use C*E.2 for this",
        "identity": "v2"
      }, {
        "map": "./originalText[mediaType/code=\"text/plain\"]/data",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable",
        "valueBoolean": true
      } ],
      "max": "1",
      "id": "Task.businessStatus.text",
      "condition": [ "ele-1" ],
      "comment": "Very often the text is the same as a displayName of one of the codings.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "CodeableConcept.text"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.intent",
      "min": 1,
      "definition": "Indicates the \"level\" of actionability associated with the Task, i.e. i+R[9]Cs this a proposed task, a planned task, an actionable task, etc.",
      "short": "unknown | proposal | plan | order | original-order | reflex-order | filler-order | instance-order | option",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "Request.intent",
        "identity": "workflow"
      }, {
        "map": "FiveWs.class",
        "identity": "w5"
      }, {
        "map": ".moodCode",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "code"
      } ],
      "mustSupport": true,
      "patternCode": "proposal",
      "binding": {
        "strength": "required",
        "valueSet": "http://hl7.org/fhir/ValueSet/task-intent|4.0.1",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "TaskIntent"
        } ],
        "description": "Distinguishes whether the task is a proposal, plan or full order."
      },
      "max": "1",
      "id": "Task.intent",
      "condition": [ "ele-1" ],
      "comment": "This element is immutable.  Proposed tasks, planned tasks, etc. must be distinct instances.\n\nIn most cases, Tasks will have an intent of \"order\".",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Task.intent"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.priority",
      "requirements": "Used to identify the service level expected while performing a task.",
      "min": 0,
      "definition": "Indicates how quickly the Task should be addressed with respect to other requests.",
      "short": "routine | urgent | asap | stat",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "Request.priority",
        "identity": "workflow"
      }, {
        "map": "FiveWs.grade",
        "identity": "w5"
      }, {
        "map": ".priorityCode",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "code"
      } ],
      "meaningWhenMissing": "If missing, this task should be performed with normal priority",
      "binding": {
        "strength": "required",
        "valueSet": "http://hl7.org/fhir/ValueSet/request-priority|4.0.1",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "TaskPriority"
        } ],
        "description": "The task's priority."
      },
      "max": "1",
      "id": "Task.priority",
      "condition": [ "ele-1" ],
      "comment": "Note that FHIR strings SHALL NOT exceed 1MB in size",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.priority"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.code",
      "min": 0,
      "definition": "A name or code (or both) briefly describing what the task involves.",
      "short": "Task Type",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE",
        "identity": "v2"
      }, {
        "map": "CD",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept rdfs:subClassOf dt:CD",
        "identity": "orim"
      }, {
        "map": "Request.code, Event.code",
        "identity": "workflow"
      }, {
        "map": "FiveWs.what[x]",
        "identity": "w5"
      }, {
        "map": ".code",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "CodeableConcept"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "extensible",
        "valueSet": "http://ehealthontario.ca/fhir/ValueSet/task-code",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "TaskCode"
        } ],
        "description": "Codes to identify what the task involves.  These will typically be specific to a particular workflow."
      },
      "max": "1",
      "id": "Task.code",
      "condition": [ "ele-1" ],
      "comment": "The title (eg \"My Tasks\", \"Outstanding Tasks for Patient X\") should go into the code",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.code"
      },
      "isSummary": true
    }, {
      "path": "Task.code.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.code.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.code.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.code.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.code.coding",
      "requirements": "Allows for alternative encodings within a code system, and translations to other code systems.",
      "min": 0,
      "definition": "A reference to a code defined by a terminology system.",
      "short": "Code defined by a terminology system",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE subset one of the sets of component 1-3 or 4-6",
        "identity": "v2"
      }, {
        "map": "CV",
        "identity": "rim"
      }, {
        "map": "fhir:Coding rdfs:subClassOf dt:CDCoding",
        "identity": "orim"
      }, {
        "map": "C*E.1-8, C*E.10-22",
        "identity": "v2"
      }, {
        "map": "union(., ./translation)",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept.coding rdfs:subPropertyOf dt:CD.coding",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "Coding"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "extensible",
        "valueSet": "http://ehealthontario.ca/fhir/ValueSet/task-code"
      },
      "max": "*",
      "id": "Task.code.coding",
      "condition": [ "ele-1" ],
      "comment": "Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information.  Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "CodeableConcept.coding"
      },
      "isSummary": true
    }, {
      "path": "Task.code.coding.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.code.coding.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.code.coding.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.code.coding.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.code.coding.system",
      "requirements": "Need to be unambiguous about the source of the definition of the symbol.",
      "min": 0,
      "definition": "The identification of the code system that defines the meaning of the symbol in the code.",
      "short": "Identity of the terminology system",
      "fixedUri": "https://ehealthontario.ca/fhir/CodeSystem/task-code",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "C*E.3",
        "identity": "v2"
      }, {
        "map": "./codeSystem",
        "identity": "rim"
      }, {
        "map": "fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "mustSupport": true,
      "max": "1",
      "id": "Task.code.coding.system",
      "condition": [ "ele-1" ],
      "comment": "The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...).  OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Coding.system"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.code.coding.version",
      "min": 0,
      "definition": "The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.",
      "short": "Version of the system - if relevant",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "C*E.7",
        "identity": "v2"
      }, {
        "map": "./codeSystemVersion",
        "identity": "rim"
      }, {
        "map": "fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "max": "1",
      "id": "Task.code.coding.version",
      "condition": [ "ele-1" ],
      "comment": "Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Coding.version"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.code.coding.code",
      "requirements": "Need to refer to a particular code in the system.",
      "min": 0,
      "definition": "A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).",
      "short": "Symbol in syntax defined by the system",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "C*E.1",
        "identity": "v2"
      }, {
        "map": "./code",
        "identity": "rim"
      }, {
        "map": "fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "code"
      } ],
      "max": "1",
      "id": "Task.code.coding.code",
      "condition": [ "ele-1" ],
      "comment": "Note that FHIR strings SHALL NOT exceed 1MB in size",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Coding.code"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.code.coding.display",
      "requirements": "Need to be able to carry a human-readable meaning of the code for readers that do not know  the system.",
      "min": 0,
      "definition": "A representation of the meaning of the code in the system, following the rules of the system.",
      "short": "Representation defined by the system",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "C*E.2 - but note this is not well followed",
        "identity": "v2"
      }, {
        "map": "CV.displayName",
        "identity": "rim"
      }, {
        "map": "fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable",
        "valueBoolean": true
      } ],
      "max": "1",
      "id": "Task.code.coding.display",
      "condition": [ "ele-1" ],
      "comment": "Note that FHIR strings SHALL NOT exceed 1MB in size",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Coding.display"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.code.coding.userSelected",
      "requirements": "This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.",
      "min": 0,
      "definition": "Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).",
      "short": "If this coding was chosen directly by the user",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "Sometimes implied by being first",
        "identity": "v2"
      }, {
        "map": "CD.codingRationale",
        "identity": "rim"
      }, {
        "map": "fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map;   fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\\#true a [     fhir:source \"true\";     fhir:target dt:CDCoding.codingRationale\\#O   ]",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "boolean"
      } ],
      "max": "1",
      "id": "Task.code.coding.userSelected",
      "condition": [ "ele-1" ],
      "comment": "Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Coding.userSelected"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.code.text",
      "requirements": "The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.",
      "min": 0,
      "definition": "A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.",
      "short": "Plain text representation of the concept",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "C*E.9. But note many systems use C*E.2 for this",
        "identity": "v2"
      }, {
        "map": "./originalText[mediaType/code=\"text/plain\"]/data",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept.text rdfs:subPropertyOf dt:CD.originalText",
        "identity": "orim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable",
        "valueBoolean": true
      } ],
      "max": "1",
      "id": "Task.code.text",
      "condition": [ "ele-1" ],
      "comment": "Very often the text is the same as a displayName of one of the codings.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "CodeableConcept.text"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.description",
      "min": 0,
      "definition": "A free-text description of what is to be performed.",
      "short": "Human-readable explanation of task",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": ".text",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "max": "1",
      "id": "Task.description",
      "condition": [ "ele-1" ],
      "comment": "Note that FHIR strings SHALL NOT exceed 1MB in size",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.description"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.focus",
      "requirements": "Used to identify the thing to be done.",
      "min": 0,
      "definition": "The request being actioned or the resource being manipulated by this task.",
      "short": "What task is acting on",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "FiveWs.what[x]",
        "identity": "w5"
      }, {
        "map": ".outboundRelationship[typeCode=SUBJ].target",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Resource" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.focus",
      "condition": [ "ele-1" ],
      "comment": "If multiple resources need to be manipulated, use sub-tasks.  (This ensures that status can be tracked independently for each referenced resource.).",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.focus"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.for",
      "requirements": "Used to track tasks outstanding for a beneficiary.  Do not use to track the task owner or creator (see owner and creator respectively).  This can also affect access control.",
      "min": 0,
      "definition": "The entity who benefits from the performance of the service specified in the task (e.g., the patient).",
      "short": "Beneficiary of the Task",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "Request.subject, Event.subject",
        "identity": "workflow"
      }, {
        "map": "FiveWs.subject[x]",
        "identity": "w5"
      }, {
        "map": ".participation[typeCode=RCT].role",
        "identity": "rim"
      }, {
        "map": "FiveWs.subject",
        "identity": "w5"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Resource" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "Patient" ],
      "max": "1",
      "id": "Task.for",
      "condition": [ "ele-1" ],
      "comment": "References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.for"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.encounter",
      "requirements": "For some tasks it may be important to know the link between the encounter the task originated within.",
      "min": 0,
      "definition": "The healthcare event  (e.g. a patient and healthcare provider interaction) during which this task was created.",
      "short": "Healthcare event during which this task originated",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "Request.context, Event.context",
        "identity": "workflow"
      }, {
        "map": "FiveWs.context",
        "identity": "w5"
      }, {
        "map": ".inboundRelationship[typeCode=COMP].source[classCode=PCPR, moodCode=EVN]",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Encounter" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.encounter",
      "condition": [ "ele-1" ],
      "comment": "References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.encounter"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "per-1",
        "human": "If present, start SHALL have a lower value than end",
        "xpath": "not(exists(f:start/@value)) or not(exists(f:end/@value)) or (xs:dateTime(f:start/@value) <= xs:dateTime(f:end/@value))",
        "source": "http://hl7.org/fhir/StructureDefinition/Period",
        "severity": "error",
        "expression": "start.hasValue().not() or end.hasValue().not() or (start <= end)"
      } ],
      "path": "Task.executionPeriod",
      "min": 0,
      "definition": "Identifies the time action was first taken against the task (start) and/or the time final action was taken against the task prior to marking it as completed (end).",
      "short": "Start and end time of execution",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "DR",
        "identity": "v2"
      }, {
        "map": "IVL[lowClosed=\"true\" and highClosed=\"true\"] or URG[lowClosed=\"true\" and highClosed=\"true\"]",
        "identity": "rim"
      }, {
        "map": "Event.occurrence[x]",
        "identity": "workflow"
      }, {
        "map": "FiveWs.done[x]",
        "identity": "w5"
      }, {
        "map": ".effectiveTime",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Period"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.executionPeriod",
      "condition": [ "ele-1" ],
      "comment": "A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. \"the patient was an inpatient of the hospital for this time range\") or one value from the range applies (e.g. \"give to the patient between these two times\").\n\nPeriod is not used for a duration (a measure of elapsed time). See [Duration](datatypes.html#Duration).",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.executionPeriod"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.authoredOn",
      "requirements": "Most often used along with lastUpdated to track duration of task to supporting monitoring and management.",
      "min": 0,
      "definition": "The date and time this task was created.",
      "short": "Task Creation Date",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "Request.authoredOn",
        "identity": "workflow"
      }, {
        "map": "FiveWs.recorded",
        "identity": "w5"
      }, {
        "map": ".participation[typeCode=AUT].time",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "dateTime"
      } ],
      "mustSupport": true,
      "alias": [ "Created Date" ],
      "max": "1",
      "id": "Task.authoredOn",
      "condition": [ "ele-1", "inv-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.authoredOn"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.lastModified",
      "requirements": "Used along with history to track task activity and time in a particular task state.  This enables monitoring and management.",
      "min": 0,
      "definition": "The date and time of last modification to this task.",
      "short": "Task Last Modified Date",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": ".inboundRelationship[typeCode=SUBJ, ].source[classCode=CACT, moodCode=EVN].effectiveTime",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "dateTime"
      } ],
      "mustSupport": true,
      "alias": [ "Update Date" ],
      "max": "1",
      "id": "Task.lastModified",
      "condition": [ "ele-1", "inv-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.lastModified"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.requester",
      "requirements": "Identifies who created this task.  May be used by access control mechanisms (e.g., to ensure that only the creator can cancel a task).",
      "min": 0,
      "definition": "The creator of the task.",
      "short": "Who is asking for task to be done",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "Request.requester",
        "identity": "workflow"
      }, {
        "map": "FiveWs.author",
        "identity": "w5"
      }, {
        "map": ".participation[typeCode=AUT].role",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Device", "http://hl7.org/fhir/StructureDefinition/Organization", "http://hl7.org/fhir/StructureDefinition/Patient", "http://hl7.org/fhir/StructureDefinition/Practitioner", "http://hl7.org/fhir/StructureDefinition/PractitionerRole", "http://hl7.org/fhir/StructureDefinition/RelatedPerson" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.requester",
      "condition": [ "ele-1" ],
      "comment": "References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.requester"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.performerType",
      "requirements": "Use to distinguish tasks on different activity queues.",
      "min": 0,
      "definition": "The kind of participant that should perform the task.",
      "short": "Requested performer",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE",
        "identity": "v2"
      }, {
        "map": "CD",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept rdfs:subClassOf dt:CD",
        "identity": "orim"
      }, {
        "map": "Event.performer.role, Request.performerType",
        "identity": "workflow"
      }, {
        "map": "FiveWs.actor",
        "identity": "w5"
      }, {
        "map": ".participation[typeCode=PRF].role.code",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "CodeableConcept"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "preferred",
        "valueSet": "http://hl7.org/fhir/ValueSet/performer-role",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "TaskPerformerType"
        } ],
        "description": "The type(s) of task performers allowed."
      },
      "max": "*",
      "id": "Task.performerType",
      "condition": [ "ele-1" ],
      "comment": "Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Task.performerType"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.owner",
      "requirements": "Identifies who is expected to perform this task.",
      "min": 0,
      "definition": "Individual organization or Device currently responsible for task execution.",
      "short": "Responsible individual",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "Event.performer.actor, Request.performer",
        "identity": "workflow"
      }, {
        "map": "FiveWs.actor",
        "identity": "w5"
      }, {
        "map": ".participation[typeCode=PRF].role",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/PractitionerRole" ]
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "Performer", "Executer" ],
      "max": "1",
      "id": "Task.owner",
      "condition": [ "ele-1" ],
      "comment": "Tasks may be created with an owner not yet identified.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.owner"
      },
      "isSummary": true
    }, {
      "path": "Task.owner.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.owner.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.owner.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.owner.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.owner.reference",
      "min": 0,
      "definition": "A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.",
      "short": "Literal reference, Relative, internal or absolute URL",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "mustSupport": true,
      "max": "1",
      "id": "Task.owner.reference",
      "condition": [ "ele-1", "ref-1" ],
      "comment": "Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries.   Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure \"/[type]/[id]\" then it should be assumed that the reference is to a FHIR RESTful server.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Reference.reference"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.owner.type",
      "min": 0,
      "definition": "The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.\n\nThe type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. \"Patient\" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).",
      "short": "Type the reference refers to (e.g. \"Patient\")",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "binding": {
        "strength": "extensible",
        "valueSet": "http://hl7.org/fhir/ValueSet/resource-types",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "FHIRResourceTypeExt"
        } ],
        "description": "Aa resource (or, for logical models, the URI of the logical model)."
      },
      "max": "1",
      "id": "Task.owner.type",
      "condition": [ "ele-1" ],
      "comment": "This element is used to indicate the type of  the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Reference.type"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.owner.identifier",
      "min": 0,
      "definition": "An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.",
      "short": "Logical reference, when literal reference is not known",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CX / EI (occasionally, more often EI maps to a resource id or a URL)",
        "identity": "v2"
      }, {
        "map": "II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]",
        "identity": "rim"
      }, {
        "map": "Identifier",
        "identity": "servd"
      }, {
        "map": ".identifier",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Identifier"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.owner.identifier",
      "condition": [ "ele-1" ],
      "comment": "When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. \n\nWhen both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference\n\nApplications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.\n\nReference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference.  For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport).  One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Reference.identifier"
      },
      "isSummary": true
    }, {
      "path": "Task.owner.identifier.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.owner.identifier.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.owner.identifier.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.owner.identifier.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.owner.identifier.use",
      "requirements": "Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.",
      "min": 0,
      "definition": "The purpose of this identifier.",
      "isModifier": true,
      "short": "usual | official | temp | secondary | old (If known)",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "v2"
      }, {
        "map": "Role.code or implied by context",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "code"
      } ],
      "binding": {
        "strength": "required",
        "valueSet": "http://hl7.org/fhir/ValueSet/identifier-use|4.0.1",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "IdentifierUse"
        } ],
        "description": "Identifies the purpose for this identifier, if known ."
      },
      "max": "1",
      "id": "Task.owner.identifier.use",
      "condition": [ "ele-1" ],
      "comment": "Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.use"
      },
      "isModifierReason": "This is labeled as \"Is Modifier\" because applications should not mistake a temporary id for a permanent one.",
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.owner.identifier.type",
      "requirements": "Allows users to make use of identifiers when the identifier system is not known.",
      "min": 0,
      "definition": "A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.",
      "short": "Description of identifier",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE",
        "identity": "v2"
      }, {
        "map": "CD",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept rdfs:subClassOf dt:CD",
        "identity": "orim"
      }, {
        "map": "CX.5",
        "identity": "v2"
      }, {
        "map": "Role.code or implied by context",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "CodeableConcept"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "extensible",
        "valueSet": "http://hl7.org/fhir/ValueSet/identifier-type",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "IdentifierType"
        }, {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding",
          "valueBoolean": true
        } ],
        "description": "A coded type for an identifier that can be used to determine which identifier to use for a specific purpose."
      },
      "max": "1",
      "id": "Task.owner.identifier.type",
      "condition": [ "ele-1" ],
      "comment": "This element deals only with general categories of identifiers.  It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage.   Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.type"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.owner.identifier.system",
      "requirements": "There are many sets  of identifiers.  To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.",
      "min": 1,
      "definition": "Establishes the namespace for the value - that is, a URL that describes a set values that are unique.",
      "short": "The namespace for the identifier value",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CX.4 / EI-2-4",
        "identity": "v2"
      }, {
        "map": "II.root or Role.id.root",
        "identity": "rim"
      }, {
        "map": "./IdentifierType",
        "identity": "servd"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "mustSupport": true,
      "max": "1",
      "id": "Task.owner.identifier.system",
      "condition": [ "ele-1" ],
      "comment": "Identifier.system is always case sensitive.",
      "example": [ {
        "label": "General",
        "valueUri": "http://www.acme.com/identifiers/patient"
      } ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.system"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.owner.identifier.value",
      "min": 1,
      "definition": "The portion of the identifier typically relevant to the user and which is unique within the context of the system.",
      "short": "The value that is unique",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CX.1 / EI.1",
        "identity": "v2"
      }, {
        "map": "II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)",
        "identity": "rim"
      }, {
        "map": "./Value",
        "identity": "servd"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "mustSupport": true,
      "max": "1",
      "id": "Task.owner.identifier.value",
      "condition": [ "ele-1" ],
      "comment": "If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986.  The value's primary purpose is computational mapping.  As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.)  A value formatted for human display can be conveyed using the [Rendered Value extension](extension-rendered-value.html). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.",
      "example": [ {
        "label": "General",
        "valueString": "123456"
      } ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.value"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "per-1",
        "human": "If present, start SHALL have a lower value than end",
        "xpath": "not(exists(f:start/@value)) or not(exists(f:end/@value)) or (xs:dateTime(f:start/@value) <= xs:dateTime(f:end/@value))",
        "source": "http://hl7.org/fhir/StructureDefinition/Period",
        "severity": "error",
        "expression": "start.hasValue().not() or end.hasValue().not() or (start <= end)"
      } ],
      "path": "Task.owner.identifier.period",
      "min": 0,
      "definition": "Time period during which identifier is/was valid for use.",
      "short": "Time period when id is/was valid for use",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "DR",
        "identity": "v2"
      }, {
        "map": "IVL[lowClosed=\"true\" and highClosed=\"true\"] or URG[lowClosed=\"true\" and highClosed=\"true\"]",
        "identity": "rim"
      }, {
        "map": "CX.7 + CX.8",
        "identity": "v2"
      }, {
        "map": "Role.effectiveTime or implied by context",
        "identity": "rim"
      }, {
        "map": "./StartDate and ./EndDate",
        "identity": "servd"
      } ],
      "type": [ {
        "code": "Period"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.owner.identifier.period",
      "condition": [ "ele-1" ],
      "comment": "A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. \"the patient was an inpatient of the hospital for this time range\") or one value from the range applies (e.g. \"give to the patient between these two times\").\n\nPeriod is not used for a duration (a measure of elapsed time). See [Duration](datatypes.html#Duration).",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.period"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.owner.identifier.assigner",
      "min": 0,
      "definition": "Organization that issued/manages the identifier.",
      "short": "Organization that issued id (may be just text)",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "CX.4 / (CX.4,CX.9,CX.10)",
        "identity": "v2"
      }, {
        "map": "II.assigningAuthorityName but note that this is an improper use by the definition of the field.  Also Role.scoper",
        "identity": "rim"
      }, {
        "map": "./IdentifierIssuingAuthority",
        "identity": "servd"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Organization" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.owner.identifier.assigner",
      "condition": [ "ele-1" ],
      "comment": "The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Identifier.assigner"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.owner.display",
      "min": 0,
      "definition": "Plain text narrative that identifies the resource in addition to the resource reference.",
      "short": "Text alternative for the resource",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable",
        "valueBoolean": true
      } ],
      "max": "1",
      "id": "Task.owner.display",
      "condition": [ "ele-1" ],
      "comment": "This is generally not the same as the Resource.text of the referenced resource.  The purpose is to identify what's being referenced, not to fully describe it.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Reference.display"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.location",
      "requirements": "Ties the event to where the records are likely kept and provides context around the event occurrence (e.g. if it occurred inside or outside a dedicated healthcare setting).",
      "min": 0,
      "definition": "Principal physical location where the this task is performed.",
      "short": "Where task occurs",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "Request.reasonCode, Event.reasonCode",
        "identity": "workflow"
      }, {
        "map": "FiveWs.where[x]",
        "identity": "w5"
      }, {
        "map": ".participation[typeCode=LOC].role",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Location" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.location",
      "condition": [ "ele-1" ],
      "comment": "References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.location"
      },
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.reasonCode",
      "min": 0,
      "definition": "A description or code indicating why this task needs to be performed.",
      "short": "Why task is needed",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE",
        "identity": "v2"
      }, {
        "map": "CD",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept rdfs:subClassOf dt:CD",
        "identity": "orim"
      }, {
        "map": "Event.location",
        "identity": "workflow"
      }, {
        "map": "FiveWs.why[x]",
        "identity": "w5"
      }, {
        "map": "EVN.7",
        "identity": "v2"
      }, {
        "map": ".reasonCode",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "CodeableConcept"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "example",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "TaskReason"
        } ],
        "description": "Indicates why the task is needed.  E.g. Suspended because patient admitted to hospital."
      },
      "max": "1",
      "id": "Task.reasonCode",
      "condition": [ "ele-1" ],
      "comment": "This should only be included if there is no focus or if it differs from the reason indicated on the focus.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.reasonCode"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.reasonReference",
      "min": 0,
      "definition": "A resource reference indicating why this task needs to be performed.",
      "short": "Why task is needed",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "Request.reasonReference, Event.reasonReference",
        "identity": "workflow"
      }, {
        "map": "FiveWs.why[x]",
        "identity": "w5"
      }, {
        "map": ".outboundRelationship[typeCode=RSON].target",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Resource" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.reasonReference",
      "condition": [ "ele-1" ],
      "comment": "Tasks might be justified based on an Observation, a Condition, a past or planned procedure, etc.   This should only be included if there is no focus or if it differs from the reason indicated on the focus.    Use the CodeableConcept text element in `Task.reasonCode` if the data is free (uncoded) text.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.reasonReference"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.insurance",
      "min": 0,
      "definition": "Insurance plans, coverage extensions, pre-authorizations and/or pre-determinations that may be relevant to the Task.",
      "short": "Associated insurance coverage",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "Request.insurance",
        "identity": "workflow"
      }, {
        "map": "IN1/IN2",
        "identity": "v2"
      }, {
        "map": ".outboundRelationship[typeCode=COVBY].target",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Coverage", "http://hl7.org/fhir/StructureDefinition/ClaimResponse" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "*",
      "id": "Task.insurance",
      "condition": [ "ele-1" ],
      "comment": "References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Task.insurance"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.note",
      "min": 0,
      "definition": "Free-text information captured about the task as it progresses.",
      "short": "Comments made about the task",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "v2"
      }, {
        "map": "Act",
        "identity": "rim"
      }, {
        "map": "Request.note, Event.note",
        "identity": "workflow"
      }, {
        "map": ".inboundRelationship[typeCode=SUBJ, ].source[classCode=OBS, moodCode=EVN, code=\"annotation\"].value(string)",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Annotation"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "*",
      "id": "Task.note",
      "condition": [ "ele-1" ],
      "comment": "For systems that do not have structured annotations, they can simply communicate a single annotation with no author or time.  This element may need to be included in narrative because of the potential for modifying information.  *Annotations SHOULD NOT* be used to communicate \"modifying\" information that could be computable. (This is a SHOULD because enforcing user behavior is nearly impossible).",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Task.note"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.relevantHistory",
      "min": 0,
      "definition": "Links to Provenance records for past versions of this Task that identify key state transitions or updates that are likely to be relevant to a user looking at the current version of the task.",
      "short": "Key events in history of the Task",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": "Request.relevantHistory",
        "identity": "workflow"
      }, {
        "map": ".inboundRelationship(typeCode=SUBJ].source[classCode=CACT, moodCode=EVN]",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Provenance" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "Status History" ],
      "max": "*",
      "id": "Task.relevantHistory",
      "condition": [ "ele-1" ],
      "comment": "This element does not point to the Provenance associated with the *current* version of the resource - as it would be created after this version existed.  The Provenance for the current version can be retrieved with a _revinclude.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Task.relevantHistory"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.restriction",
      "requirements": "Sometimes when fulfillment is sought, you don't want full fulfillment.",
      "min": 0,
      "definition": "If the Task.focus is a request resource and the task is seeking fulfillment (i.e. is asking for the request to be actioned), this element identifies any limitations on what parts of the referenced request should be actioned.",
      "short": "Constraints on fulfillment tasks",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "Instead of pointing to request, would point to component of request, having these characteristics",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "BackboneElement"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.restriction",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.restriction"
      }
    }, {
      "path": "Task.restriction.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.restriction.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.restriction.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.restriction.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.restriction.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "Task.restriction.modifierExtension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.restriction.repetitions",
      "requirements": "E.g. order that requests monthly lab tests, fulfillment is sought for 1.",
      "min": 0,
      "definition": "Indicates the number of times the requested action should occur.",
      "short": "How many times to repeat",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": ".repeatNumber",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "positiveInt"
      } ],
      "max": "1",
      "id": "Task.restriction.repetitions",
      "condition": [ "ele-1" ],
      "comment": "32 bit number; for values larger than this, use decimal",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.restriction.repetitions"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "per-1",
        "human": "If present, start SHALL have a lower value than end",
        "xpath": "not(exists(f:start/@value)) or not(exists(f:end/@value)) or (xs:dateTime(f:start/@value) <= xs:dateTime(f:end/@value))",
        "source": "http://hl7.org/fhir/StructureDefinition/Period",
        "severity": "error",
        "expression": "start.hasValue().not() or end.hasValue().not() or (start <= end)"
      } ],
      "path": "Task.restriction.period",
      "requirements": "E.g. order that authorizes 1 year's services.  Fulfillment is sought for next 3 months.",
      "min": 0,
      "definition": "Over what time-period is fulfillment sought.",
      "short": "When fulfillment sought",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "DR",
        "identity": "v2"
      }, {
        "map": "IVL[lowClosed=\"true\" and highClosed=\"true\"] or URG[lowClosed=\"true\" and highClosed=\"true\"]",
        "identity": "rim"
      }, {
        "map": ".effectiveTime(IVL)",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Period"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.restriction.period",
      "condition": [ "ele-1" ],
      "comment": "Note that period.high is the due date representing the time by which the task should be completed.",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Task.restriction.period"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ref-1",
        "human": "SHALL have a contained resource if a local reference is provided",
        "xpath": "not(starts-with(f:reference/@value, '#')) or exists(ancestor::*[self::f:entry or self::f:parameter]/f:resource/f:*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')]|/*/f:contained/f:*[f:id/@value=substring-after(current()/f:reference/@value, '#')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Reference",
        "severity": "error",
        "expression": "reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))"
      } ],
      "path": "Task.restriction.recipient",
      "min": 0,
      "definition": "For requests that are targeted to more than on potential recipient/target, for whom is fulfillment sought?",
      "short": "For whom is fulfillment sought?",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "The target of a resource reference is a RIM entry point (Act, Role, or Entity)",
        "identity": "rim"
      }, {
        "map": ".participation[typeCode=SBJ].role",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/Patient", "http://hl7.org/fhir/StructureDefinition/Practitioner", "http://hl7.org/fhir/StructureDefinition/PractitionerRole", "http://hl7.org/fhir/StructureDefinition/RelatedPerson", "http://hl7.org/fhir/StructureDefinition/Group", "http://hl7.org/fhir/StructureDefinition/Organization" ]
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "*",
      "id": "Task.restriction.recipient",
      "condition": [ "ele-1" ],
      "comment": "References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Task.restriction.recipient"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.input",
      "requirements": "Resources and data used to perform the task.  This data is used in the business logic of task execution, and is stored separately because it varies between workflows.",
      "min": 0,
      "definition": "Additional information that may be needed in the execution of the task.",
      "short": "Information used to perform task",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "???",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "BackboneElement"
      } ],
      "mustSupport": false,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name",
        "valueString": "Parameter"
      } ],
      "alias": [ "Supporting Information" ],
      "max": "*",
      "id": "Task.input",
      "condition": [ "ele-1" ],
      "base": {
        "max": "*",
        "min": 0,
        "path": "Task.input"
      }
    }, {
      "path": "Task.input.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.input.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.input.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.input.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.input.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "Task.input.modifierExtension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.input.type",
      "requirements": "Inputs are named to enable task automation to bind data and pass it from one task to the next.",
      "min": 1,
      "definition": "A code or description indicating how the input is intended to be used as part of the task execution.",
      "short": "Label for the input",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE",
        "identity": "v2"
      }, {
        "map": "CD",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept rdfs:subClassOf dt:CD",
        "identity": "orim"
      }, {
        "map": "???",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "CodeableConcept"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "example",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "TaskInputParameterType"
        } ],
        "description": "Codes to identify types of input parameters.  These will typically be specific to a particular workflow.  E.g. \"Comparison source\", \"Applicable consent\", \"Concomitent Medications\", etc."
      },
      "alias": [ "Name" ],
      "max": "1",
      "id": "Task.input.type",
      "condition": [ "ele-1" ],
      "comment": "If referencing a BPMN workflow or Protocol, the \"system\" is the URL for the workflow definition and the code is the \"name\" of the required input.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Task.input.type"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.input.value[x]",
      "min": 1,
      "definition": "The value of the input parameter as a basic type.",
      "short": "Content to use in performing the task",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "???",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "base64Binary"
      }, {
        "code": "boolean"
      }, {
        "code": "canonical"
      }, {
        "code": "code"
      }, {
        "code": "date"
      }, {
        "code": "dateTime"
      }, {
        "code": "decimal"
      }, {
        "code": "id"
      }, {
        "code": "instant"
      }, {
        "code": "integer"
      }, {
        "code": "markdown"
      }, {
        "code": "oid"
      }, {
        "code": "positiveInt"
      }, {
        "code": "string"
      }, {
        "code": "time"
      }, {
        "code": "unsignedInt"
      }, {
        "code": "uri"
      }, {
        "code": "url"
      }, {
        "code": "uuid"
      }, {
        "code": "Address"
      }, {
        "code": "Age"
      }, {
        "code": "Annotation"
      }, {
        "code": "Attachment"
      }, {
        "code": "CodeableConcept"
      }, {
        "code": "Coding"
      }, {
        "code": "ContactPoint"
      }, {
        "code": "Count"
      }, {
        "code": "Distance"
      }, {
        "code": "Duration"
      }, {
        "code": "HumanName"
      }, {
        "code": "Identifier"
      }, {
        "code": "Money"
      }, {
        "code": "Period"
      }, {
        "code": "Quantity"
      }, {
        "code": "Range"
      }, {
        "code": "Ratio"
      }, {
        "code": "Reference"
      }, {
        "code": "SampledData"
      }, {
        "code": "Signature"
      }, {
        "code": "Timing"
      }, {
        "code": "ContactDetail"
      }, {
        "code": "Contributor"
      }, {
        "code": "DataRequirement"
      }, {
        "code": "Expression"
      }, {
        "code": "ParameterDefinition"
      }, {
        "code": "RelatedArtifact"
      }, {
        "code": "TriggerDefinition"
      }, {
        "code": "UsageContext"
      }, {
        "code": "Dosage"
      }, {
        "code": "Meta"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.input.value[x]",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 1,
        "path": "Task.input.value[x]"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.output",
      "requirements": "Resources and data produced during the execution the task.  This data is generated by the business logic of task execution, and is stored separately because it varies between workflows.",
      "min": 0,
      "definition": "Outputs produced by the Task.",
      "short": "Information produced as part of task",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "???",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "BackboneElement"
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "*",
      "id": "Task.output",
      "condition": [ "ele-1" ],
      "base": {
        "max": "*",
        "min": 0,
        "path": "Task.output"
      }
    }, {
      "path": "Task.output.id",
      "min": 0,
      "definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
      "short": "Unique id for inter-element referencing",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "http://hl7.org/fhirpath/System.String",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
          "valueUrl": "string"
        } ]
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Task.output.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.output.extension",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.",
      "short": "Additional content defined by implementations",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "slicing": {
        "rules": "open",
        "description": "Extensions are always sliced by (at least) url",
        "discriminator": [ {
          "path": "url",
          "type": "value"
        } ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content" ],
      "max": "*",
      "id": "Task.output.extension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      }, {
        "key": "ext-1",
        "human": "Must have either extensions or value[x], not both",
        "xpath": "exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])",
        "source": "http://hl7.org/fhir/StructureDefinition/Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Task.output.modifierExtension",
      "requirements": "Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).",
      "min": 0,
      "definition": "May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.\n\nModifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).",
      "isModifier": true,
      "short": "Extensions that cannot be ignored even if unrecognized",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Extension"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "alias": [ "extensions", "user content", "modifiers" ],
      "max": "*",
      "id": "Task.output.modifierExtension",
      "condition": [ "ele-1" ],
      "comment": "There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.",
      "base": {
        "max": "*",
        "min": 0,
        "path": "BackboneElement.modifierExtension"
      },
      "isModifierReason": "Modifier extensions are expected to modify the meaning or interpretation of the element that contains them",
      "isSummary": true
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.output.type",
      "requirements": "Outputs are named to enable task automation to bind data and pass it from one task to the next.",
      "min": 1,
      "definition": "The name of the Output parameter.",
      "short": "Label for output",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "CE/CNE/CWE",
        "identity": "v2"
      }, {
        "map": "CD",
        "identity": "rim"
      }, {
        "map": "fhir:CodeableConcept rdfs:subClassOf dt:CD",
        "identity": "orim"
      }, {
        "map": "???",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "CodeableConcept"
      } ],
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "binding": {
        "strength": "example",
        "extension": [ {
          "url": "http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName",
          "valueString": "TaskOutputParameterType"
        } ],
        "description": "Codes to identify types of input parameters.  These will typically be specific to a particular workflow.  E.g. \"Identified issues\", \"Preliminary results\", \"Filler order\", \"Final results\", etc."
      },
      "alias": [ "Name" ],
      "max": "1",
      "id": "Task.output.type",
      "condition": [ "ele-1" ],
      "comment": "Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Task.output.type"
      }
    }, {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "http://hl7.org/fhir/StructureDefinition/Element",
        "severity": "error",
        "expression": "hasValue() or (children().count() > id.count())"
      } ],
      "path": "Task.output.value[x]",
      "requirements": "Task outputs can take any form.",
      "min": 1,
      "definition": "The value of the Output parameter as a basic type.",
      "short": "Result of output",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      }, {
        "map": "???",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://ehealthontario.ca/fhir/StructureDefinition/ca-on-eReferral-profile-Communication" ]
      } ],
      "mustSupport": true,
      "extension": [ {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
        "valueCode": "normative"
      }, {
        "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
        "valueCode": "4.0.0"
      } ],
      "max": "1",
      "id": "Task.output.value[x]",
      "condition": [ "ele-1" ],
      "base": {
        "max": "1",
        "min": 1,
        "path": "Task.output.value[x]"
      }
    } ]
  },
  "status": "draft",
  "id": "4153d939-9ce3-41c1-b323-8e58075f8e84",
  "kind": "resource",
  "url": "http://ehealthontario.ca/fhir/StructureDefinition/ca-on-eReferral-profile-Task",
  "version": "1.0.1",
  "differential": {
    "element": [ {
      "id": "Task.meta",
      "min": 1,
      "path": "Task.meta",
      "mustSupport": true
    }, {
      "id": "Task.meta.profile",
      "min": 1,
      "path": "Task.meta.profile",
      "comment": "#### **_` FOR eREFERRAL USAGE: The meta.profile = http://ehealthontario.ca/fhir/StructureDefinition/ca-on-eReferral-profile-Task|1.0.1 `_**\r\n\r\nIt is up to the server and/or other infrastructure of policy to determine whether/how these claims are verified and/or updated over time.  The list of profile URLs is a set.",
      "mustSupport": true
    }, {
      "id": "Task.extension:PatientNeedsToBeSeen",
      "path": "Task.extension",
      "type": [ {
        "code": "Extension",
        "profile": [ "http://ehealthontario.ca/fhir/StructureDefinition/ca-on-eConsult-ext-patient-needs-to-be-seen" ]
      } ],
      "sliceName": "PatientNeedsToBeSeen",
      "isModifier": false
    }, {
      "id": "Task.identifier",
      "path": "Task.identifier",
      "mustSupport": true
    }, {
      "id": "Task.basedOn",
      "path": "Task.basedOn",
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://ehealthontario.ca/fhir/StructureDefinition/ca-on-eReferral-profile-ServiceRequest" ]
      } ]
    }, {
      "id": "Task.businessStatus",
      "path": "Task.businessStatus",
      "short": "E.g. \"New\", \"Pending\", \"Accepted\", etc.",
      "binding": {
        "strength": "extensible",
        "valueSet": "http://ehealthontario.ca/fhir/ValueSet/task-business-status",
        "description": "BusinessStatus is used to communicate deployment specific status information. For example: \"New\", \"Pending\", \"Accepted\", etc."
      }
    }, {
      "id": "Task.businessStatus.coding",
      "path": "Task.businessStatus.coding",
      "binding": {
        "strength": "example",
        "valueSet": "http://ehealthontario.ca/fhir/ValueSet/task-business-status"
      }
    }, {
      "id": "Task.businessStatus.coding.system",
      "path": "Task.businessStatus.coding.system",
      "fixedUri": "https://ehealthontario.ca/fhir/CodeSystem/task-business-status",
      "mustSupport": true
    }, {
      "id": "Task.businessStatus.coding.display",
      "path": "Task.businessStatus.coding.display",
      "mustSupport": true
    }, {
      "id": "Task.businessStatus.text",
      "path": "Task.businessStatus.text",
      "mustSupport": true
    }, {
      "id": "Task.code",
      "path": "Task.code",
      "binding": {
        "strength": "extensible",
        "valueSet": "http://ehealthontario.ca/fhir/ValueSet/task-code"
      },
      "comment": "The title (eg \"My Tasks\", \"Outstanding Tasks for Patient X\") should go into the code"
    }, {
      "id": "Task.code.coding",
      "path": "Task.code.coding",
      "binding": {
        "strength": "extensible",
        "valueSet": "http://ehealthontario.ca/fhir/ValueSet/task-code"
      }
    }, {
      "id": "Task.code.coding.system",
      "path": "Task.code.coding.system",
      "fixedUri": "https://ehealthontario.ca/fhir/CodeSystem/task-code",
      "mustSupport": true
    }, {
      "id": "Task.code.coding.display",
      "path": "Task.code.coding.display",
      "mustSupport": true
    }, {
      "id": "Task.lastModified",
      "path": "Task.lastModified",
      "mustSupport": true
    }, {
      "id": "Task.owner",
      "path": "Task.owner",
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://hl7.org/fhir/StructureDefinition/PractitionerRole" ]
      } ]
    }, {
      "id": "Task.input",
      "path": "Task.input",
      "mustSupport": false
    }, {
      "id": "Task.output.value[x]",
      "path": "Task.output.value[x]",
      "type": [ {
        "code": "Reference",
        "targetProfile": [ "http://ehealthontario.ca/fhir/StructureDefinition/ca-on-eReferral-profile-Communication" ]
      } ]
    } ]
  },
  "baseDefinition": "http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/CA-eReC-Task"
}