{
  "description": "Consumers of the value set and the implementations, projects or standards that the author has utilized the value set in.",
  "_filename": "extension-codesystem-usage.json",
  "package_name": "hl7.fhir.core",
  "date": "2016-12-06T12:22:34+11:00",
  "derivation": "constraint",
  "publisher": "HL7",
  "fhirVersion": "1.8.0",
  "name": "Who has used and how?",
  "mapping": [ {
    "uri": "http://hl7.org/v3",
    "name": "RIM Mapping",
    "identity": "rim"
  } ],
  "abstract": false,
  "type": "Extension",
  "experimental": null,
  "resourceType": "StructureDefinition",
  "title": null,
  "package_version": "1.8.0",
  "snapshot": {
    "element": [ {
      "constraint": [ {
        "key": "ele-1",
        "human": "All FHIR elements must have a @value or children",
        "xpath": "@value|f:*|h:div",
        "source": "Element",
        "severity": "error",
        "expression": "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": "Extension",
        "severity": "error",
        "expression": "extension.exists() != value.exists()"
      } ],
      "path": "Extension",
      "min": 0,
      "definition": "Consumers of the value set and the implementations, projects or standards that the author has utilized the value set in.",
      "isModifier": false,
      "short": "Who has used and how?",
      "comments": "This is likely to be a ???point in time??? view and should not be considered an authoritative listing of all uses of the value set.",
      "max": "*",
      "id": "Extension:whohasusedandhow?",
      "condition": [ "ele-1" ],
      "base": {
        "max": "*",
        "min": 0,
        "path": "Extension"
      }
    }, {
      "path": "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": "xml:id (or equivalent in JSON)",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension:whohasusedandhow?.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "path": "Extension.extension",
      "min": 0,
      "definition": "An Extension",
      "short": "Extension",
      "slicing": {
        "id": "79",
        "rules": "open",
        "ordered": false,
        "discriminator": [ "url" ]
      },
      "type": [ {
        "code": "Extension"
      } ],
      "max": "*",
      "id": "Extension:whohasusedandhow?.extension",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "path": "Extension.extension",
      "min": 1,
      "definition": "This is most likely to be an organization but can be an individual. It would not be a program, that information should be recorded in the usage.use.",
      "isModifier": false,
      "short": "A consumer of or client for the value set",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "user",
      "max": "1",
      "id": "Extension:whohasusedandhow?.extension:user",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "path": "Extension.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": "xml:id (or equivalent in JSON)",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension:whohasusedandhow?.extension:user.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "path": "Extension.extension.extension",
      "min": 0,
      "definition": "An Extension",
      "short": "Extension",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "extension",
      "max": "0",
      "id": "Extension:whohasusedandhow?.extension:user.extension:extension",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "path": "Extension.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": "user",
      "comments": "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.",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension:whohasusedandhow?.extension:user.url",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      }
    }, {
      "path": "Extension.extension.valueString",
      "min": 1,
      "definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
      "short": "Value of extension",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "max": "1",
      "id": "Extension:whohasusedandhow?.extension:user.valueString",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      }
    }, {
      "path": "Extension.extension",
      "min": 1,
      "definition": "A descriptive name of the project or standard in which the value set is used.",
      "isModifier": false,
      "short": "Implementation/project/standard that uses value set",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "use",
      "max": "1",
      "id": "Extension:whohasusedandhow?.extension:use",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "path": "Extension.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": "xml:id (or equivalent in JSON)",
      "mapping": [ {
        "map": "n/a",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension:whohasusedandhow?.extension:use.id",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Element.id"
      }
    }, {
      "path": "Extension.extension.extension",
      "min": 0,
      "definition": "An Extension",
      "short": "Extension",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "extension",
      "max": "0",
      "id": "Extension:whohasusedandhow?.extension:use.extension:extension",
      "base": {
        "max": "*",
        "min": 0,
        "path": "Element.extension"
      }
    }, {
      "path": "Extension.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": "use",
      "comments": "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.",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension:whohasusedandhow?.extension:use.url",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      }
    }, {
      "path": "Extension.extension.valueString",
      "min": 1,
      "definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
      "short": "Value of extension",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "string"
      } ],
      "max": "1",
      "id": "Extension:whohasusedandhow?.extension:use.valueString",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      }
    }, {
      "path": "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://hl7.org/fhir/StructureDefinition/codesystem-usage",
      "comments": "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.",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "uri"
      } ],
      "representation": [ "xmlAttr" ],
      "max": "1",
      "id": "Extension:whohasusedandhow?.url",
      "base": {
        "max": "1",
        "min": 1,
        "path": "Extension.url"
      }
    }, {
      "path": "Extension.value[x]",
      "min": 0,
      "definition": "Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).",
      "short": "Value of extension",
      "mapping": [ {
        "map": "N/A",
        "identity": "rim"
      } ],
      "type": [ {
        "code": "base64Binary"
      }, {
        "code": "boolean"
      }, {
        "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": "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": "Meta"
      } ],
      "max": "0",
      "id": "Extension:whohasusedandhow?.value[x]",
      "base": {
        "max": "1",
        "min": 0,
        "path": "Extension.value[x]"
      }
    } ]
  },
  "status": "draft",
  "id": "9c51785b-896f-4b02-b862-57f1ba2f0c60",
  "kind": "complex-type",
  "url": "http://hl7.org/fhir/StructureDefinition/codesystem-usage",
  "context": [ "CodeSystem" ],
  "version": null,
  "differential": {
    "element": [ {
      "id": "Extension:whohasusedandhow?",
      "max": "*",
      "min": 0,
      "path": "Extension",
      "short": "Who has used and how?",
      "comments": "This is likely to be a ???point in time??? view and should not be considered an authoritative listing of all uses of the value set.",
      "definition": "Consumers of the value set and the implementations, projects or standards that the author has utilized the value set in.",
      "isModifier": false
    }, {
      "path": "Extension.extension",
      "min": 1,
      "definition": "This is most likely to be an organization but can be an individual. It would not be a program, that information should be recorded in the usage.use.",
      "isModifier": false,
      "short": "A consumer of or client for the value set",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "user",
      "max": "1",
      "id": "Extension:whohasusedandhow?.extension:user"
    }, {
      "id": "Extension:whohasusedandhow?.extension:user.extension:extension",
      "max": "0",
      "path": "Extension.extension.extension",
      "sliceName": "extension"
    }, {
      "id": "Extension:whohasusedandhow?.extension:user.url",
      "path": "Extension.extension.url",
      "type": [ {
        "code": "uri"
      } ],
      "fixedUri": "user"
    }, {
      "id": "Extension:whohasusedandhow?.extension:user.value[x]",
      "min": 1,
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "string"
      } ]
    }, {
      "path": "Extension.extension",
      "min": 1,
      "definition": "A descriptive name of the project or standard in which the value set is used.",
      "isModifier": false,
      "short": "Implementation/project/standard that uses value set",
      "type": [ {
        "code": "Extension"
      } ],
      "sliceName": "use",
      "max": "1",
      "id": "Extension:whohasusedandhow?.extension:use"
    }, {
      "id": "Extension:whohasusedandhow?.extension:use.extension:extension",
      "max": "0",
      "path": "Extension.extension.extension",
      "sliceName": "extension"
    }, {
      "id": "Extension:whohasusedandhow?.extension:use.url",
      "path": "Extension.extension.url",
      "type": [ {
        "code": "uri"
      } ],
      "fixedUri": "use"
    }, {
      "id": "Extension:whohasusedandhow?.extension:use.value[x]",
      "min": 1,
      "path": "Extension.extension.value[x]",
      "type": [ {
        "code": "string"
      } ]
    }, {
      "id": "Extension:whohasusedandhow?.url",
      "path": "Extension.url",
      "type": [ {
        "code": "uri"
      } ],
      "fixedUri": "http://hl7.org/fhir/StructureDefinition/codesystem-usage"
    }, {
      "id": "Extension:whohasusedandhow?.value[x]",
      "max": "0",
      "min": 0,
      "path": "Extension.value[x]"
    } ]
  },
  "contextType": "resource",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}