{
"description": "A FHIR Query that resolves to one or more resources that can be displayed to the user to help provide context for answering a question. For example, if the question is \\\"Has the patient discussed this issue on any visits in the past year?\\\", the contextExpression might return the set of patient's encounters for the prior 12 month period to help jog the practitioner's memory.",
"_filename": "StructureDefinition-sdc-questionnaire-contextExpression.json",
"package_name": "hl7.fhir.uv.sdc",
"date": "2014-04-21T00:00:00+10:00",
"derivation": "constraint",
"publisher": "Health Level Seven International (Orders and Observations - Structured Data Capture)",
"fhirVersion": "4.0.0",
"name": "ContextExpressionExtension",
"mapping": [ {
"uri": "http://hl7.org/v3",
"name": "RIM Mapping",
"identity": "rim"
} ],
"abstract": false,
"type": "Extension",
"experimental": "false",
"resourceType": "StructureDefinition",
"title": "Answer Context Expression",
"package_version": "2.7.0",
"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": "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": "Extension",
"severity": "error",
"expression": "extension.exists() != value.exists()"
} ],
"path": "Extension",
"min": 0,
"definition": "A FHIR Query that resolves to one or more resources that can be displayed to the user to help provide context for answering a question. For example, if the question is \"Has the patient discussed this issue on any visits in the past year?\", the contextExpression might return the set of patient's encounters for the prior 12 month period to help jog the practitioner's memory.",
"isModifier": false,
"short": "Expression for information to guide answers",
"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": "Extension",
"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.",
"isModifier": false,
"short": "Unique id for inter-element referencing",
"mapping": [ {
"map": "n/a",
"identity": "rim"
} ],
"type": [ {
"code": "string"
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.id",
"base": {
"max": "1",
"min": 0,
"path": "Element.id"
},
"isSummary": false
}, {
"path": "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.",
"isModifier": false,
"short": "Additional content defined by implementations",
"mapping": [ {
"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"
} ],
"alias": [ "extensions", "user content" ],
"max": "*",
"id": "Extension.extension",
"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"
},
"isSummary": false
}, {
"path": "Extension.url",
"min": 1,
"definition": "Source of the definition for the extension code - a logical name or a URL.",
"isModifier": false,
"short": "identifies the meaning of the extension",
"fixedUri": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-contextExpression",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "uri"
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.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"
},
"isSummary": false
}, {
"path": "Extension.valueExpression",
"min": 0,
"definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R4/extensibility.html) for a list).",
"isModifier": false,
"short": "Value of extension",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "Expression"
} ],
"max": "1",
"id": "Extension.valueExpression",
"base": {
"max": "1",
"min": 0,
"path": "Extension.value[x]"
},
"isSummary": false
} ]
},
"status": "draft",
"id": "b8ea8769-bb21-4ee5-92e8-d6629956721e",
"kind": "complex-type",
"url": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-contextExpression",
"context": [ {
"type": "element",
"expression": "Questionnaire.item"
}, {
"type": "element",
"expression": "Questionnaire.item.item"
} ],
"version": "2.7.0",
"differential": {
"element": [ {
"id": "Extension",
"max": "*",
"min": 0,
"path": "Extension",
"short": "Expression for information to guide answers",
"definition": "A FHIR Query that resolves to one or more resources that can be displayed to the user to help provide context for answering a question. For example, if the question is \"Has the patient discussed this issue on any visits in the past year?\", the contextExpression might return the set of patient's encounters for the prior 12 month period to help jog the practitioner's memory.",
"isModifier": false
}, {
"id": "Extension.url",
"path": "Extension.url",
"type": [ {
"code": "uri"
} ],
"fixedUri": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-contextExpression"
}, {
"id": "Extension.valueExpression",
"path": "Extension.valueExpression",
"type": [ {
"code": "Expression"
} ]
} ]
},
"contact": [ {
"telecom": [ {
"value": "http://wiki.siframework.org/Structured+Data+Capture+Initiative",
"system": "url"
} ]
} ],
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}