{
"description": "**This extension is only used in the QI-Core Implementation Guide's Profile StructureDefinition elements.** It flags elements that the quality improvement community has identified as significant to express the full intent of measures or decision support artifacts. See the [MustSupport Flag](index.html#mustsupport-flag) section in this IG for more information.",
"_filename": "StructureDefinition-qicore-keyelement.json",
"package_name": "hl7.fhir.us.qicore",
"date": "2023-04-03",
"derivation": "constraint",
"publisher": "HL7 International / Clinical Quality Information",
"fhirVersion": "4.0.1",
"jurisdiction": [ {
"coding": [ {
"code": "US",
"system": "urn:iso:std:iso:3166"
} ]
} ],
"name": "QICORE_KeyElement",
"mapping": [ {
"uri": "http://hl7.org/v3",
"name": "RIM Mapping",
"identity": "rim"
} ],
"abstract": false,
"copyright": "Used by permission of HL7 International, all rights reserved Creative Commons License",
"type": "Extension",
"experimental": null,
"resourceType": "StructureDefinition",
"title": "QI-Core Key Element Extension",
"package_version": "6.0.0",
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "cqi"
} ],
"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": "**This extension is only used on QI-Core Profile StructureDefinition elements**. It flags elements that are QI-Core Key Elements.",
"isModifier": false,
"short": "QI-Core Key Element Flag: ONLY USED FOR QI-Core Profile StructureDefinitions",
"mapping": [ {
"map": "No v2 equivalent",
"identity": "v2"
}, {
"map": "No RIM equivalent",
"identity": "rim"
} ],
"max": "1",
"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": "http://hl7.org/fhirpath/System.String",
"extension": [ {
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "string"
} ]
} ],
"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": "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/us/qicore/StructureDefinition/qicore-keyelement",
"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](http://hl7.org/fhir/R4/extensibility.html) for a list).",
"isModifier": false,
"short": "Value of extension",
"mapping": [ {
"map": "N/A",
"identity": "rim"
} ],
"type": [ {
"code": "boolean"
} ],
"max": "1",
"id": "Extension.value[x]",
"base": {
"max": "1",
"min": 0,
"path": "Extension.value[x]"
},
"isSummary": false
} ]
},
"status": "active",
"id": "2a18eb62-d798-472a-b78d-354a4bb326f8",
"kind": "complex-type",
"url": "http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-keyelement",
"context": [ {
"type": "element",
"expression": "ElementDefinition"
}, {
"type": "element",
"expression": "ElementDefinition.type.targetProfile"
}, {
"type": "element",
"expression": "ElementDefinition.type"
} ],
"version": "6.0.0",
"differential": {
"element": [ {
"id": "Extension",
"max": "1",
"min": 0,
"path": "Extension",
"short": "QI-Core Key Element Flag: ONLY USED FOR QI-Core Profile StructureDefinitions",
"mapping": [ {
"map": "No v2 equivalent",
"identity": "v2"
}, {
"map": "No RIM equivalent",
"identity": "rim"
} ],
"definition": "**This extension is only used on QI-Core Profile StructureDefinition elements**. It flags elements that are QI-Core Key Elements.",
"isModifier": false
}, {
"id": "Extension.url",
"path": "Extension.url",
"fixedUri": "http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-keyelement"
}, {
"id": "Extension.value[x]",
"max": "1",
"min": 1,
"path": "Extension.value[x]",
"type": [ {
"code": "boolean"
} ]
} ]
},
"contact": [ {
"name": "Clinical Quality Information WG",
"telecom": [ {
"value": "http://www.hl7.org/Special/committees/cqi",
"system": "url"
} ]
} ],
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension"
}