description: 'DSTU2: `Conformance.document.profile` additional types (Reference(http://hl7.org/fhir/StructureDefinition/StructureDefinition)) additional types from child elements (display, reference)' package_name: hl7.fhir.uv.xver-r2.r4 derivation: constraint name: ExtensionConformance_Document_Profile type: Extension elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/1.0/StructureDefinition/extension-Conformance.document.profile'} index: 0 value: short: Constraint on a resource used in the document choices: [valueReference] base: {max: '1', min: 0, path: 'Extension.value[x]'} index: 2 valueReference: short: Constraint on a resource used in the document refers: ['http://hl7.org/fhir/1.0/StructureDefinition/profile-StructureDefinition|0.1.0', 'http://hl7.org/fhir/StructureDefinition/StructureDefinition|4.0.1'] type: Reference base: {max: '1', min: 0, path: 'Extension.value[x]'} choiceOf: value index: 3 package_version: 0.1.0 class: extension kind: complex-type url: http://hl7.org/fhir/1.0/StructureDefinition/extension-Conformance.document.profile base: http://hl7.org/fhir/StructureDefinition/Extension|4.0.1 version: 0.1.0 required: [url, valueReference, value]