{
"description": "Indicates that the reference has a particular focus in the target resource, a particular element of interest, identified by it's element id.",
"_filename": "StructureDefinition-targetElement.json",
"package_name": "hl7.fhir.r5.examples",
"date": "2015-02-28",
"derivation": "constraint",
"publisher": "Health Level Seven, Inc. - FHIR Core WG",
"fhirVersion": "5.0.0-ballot",
"name": "targetElement",
"mapping": [ {
"uri": "http://hl7.org/v2",
"name": "HL7 v2 Mapping",
"identity": "v2"
}, {
"uri": "http://hl7.org/v3",
"name": "RIM Mapping",
"identity": "rim"
} ],
"abstract": false,
"type": "Extension",
"experimental": "false",
"resourceType": "StructureDefinition",
"title": null,
"package_version": "5.0.0-ballot",
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "fhir"
}, {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 1
} ],
"snapshot": {
"element": [ {
"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": "Extension",
"min": 0,
"definition": "Indicates that the reference has a particular focus in the target resource, a particular element of interest, identified by it's element id.",
"isModifier": false,
"short": "A particular element of interest in the target resource (by id)",
"mapping": [ {
"map": "N/A",
"identity": "v2"
}, {
"map": "n/a",
"identity": "rim"
} ],
"max": "*",
"id": "Extension",
"comment": "This behaves similar to a '#' element on a URL, but is more wide-open than how '#' is used in Reference.reference where it is limited to pointing only to contained resources (and where the contained resource must be of the appropriate resource type for the reference). This extension allows referring to any Element (not necessarily a resource) within the target resource provided that it has a populated 'id' element. When there is no id on the telement of interest, the extension http://hl7.org/fhir/StructureDefinition/targetPath can be used.",
"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": "http://hl7.org/fhirpath/System.String",
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "id"
} ]
} ],
"representation": [ "xmlAttr" ],
"max": "1",
"id": "Extension.id",
"base": {
"max": "1",
"min": 0,
"path": "Element.id"
},
"isSummary": false
}, {
"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": "Extension.extension",
"min": 0,
"definition": "An Extension",
"isModifier": false,
"short": "Extension",
"slicing": {
"rules": "open",
"description": "Extensions are always sliced by (at least) url",
"discriminator": [ {
"path": "url",
"type": "value"
} ]
},
"type": [ {
"code": "Extension"
} ],
"max": "0",
"id": "Extension.extension",
"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/StructureDefinition/targetElement",
"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": "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
}, {
"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": "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).",
"isModifier": false,
"short": "Value of extension",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "uri"
} ],
"max": "1",
"id": "Extension.value[x]",
"base": {
"max": "1",
"min": 0,
"path": "Extension.value[x]"
},
"isSummary": false
} ]
},
"status": "draft",
"id": "a08a53a4-75bd-4409-aa91-b9c96cff98be",
"kind": "complex-type",
"url": "http://hl7.org/fhir/StructureDefinition/targetElement",
"context": [ {
"type": "element",
"expression": "Reference"
}, {
"type": "element",
"expression": "canonical"
} ],
"version": "5.0.0-ballot",
"differential": {
"element": [ {
"id": "Extension",
"max": "*",
"min": 0,
"path": "Extension",
"short": "A particular element of interest in the target resource (by id)",
"comment": "This behaves similar to a '#' element on a URL, but is more wide-open than how '#' is used in Reference.reference where it is limited to pointing only to contained resources (and where the contained resource must be of the appropriate resource type for the reference). This extension allows referring to any Element (not necessarily a resource) within the target resource provided that it has a populated 'id' element. When there is no id on the telement of interest, the extension http://hl7.org/fhir/StructureDefinition/targetPath can be used.",
"mapping": [ {
"map": "N/A",
"identity": "v2"
}, {
"map": "n/a",
"identity": "rim"
} ],
"definition": "Indicates that the reference has a particular focus in the target resource, a particular element of interest, identified by it's element id."
}, {
"id": "Extension.extension",
"max": "0",
"path": "Extension.extension"
}, {
"id": "Extension.url",
"path": "Extension.url",
"fixedUri": "http://hl7.org/fhir/StructureDefinition/targetElement"
}, {
"id": "Extension.value[x]",
"min": 1,
"path": "Extension.value[x]",
"type": [ {
"code": "uri"
} ]
} ]
},
"contact": [ {
"telecom": [ {
"value": "http://hl7.org/special/committees/FHIR",
"system": "url"
} ]
} ],
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}