description: 'R4B: `ImplementationGuide.definition.page.name[x]` additional types (Reference(http://hl7.org/fhir/StructureDefinition/Binary)) additional types from child elements (display, identifier, reference)' package_name: hl7.fhir.uv.xver-r4b.r5 derivation: constraint name: ExtensionImplementationGuide_Definition_Page_Name type: Extension elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-ImplementationGuide.definition.page.name'} index: 0 value: short: Where to find that page choices: [valueReference] base: {max: '1', min: 0, path: 'Extension.value[x]'} index: 2 valueReference: short: Where to find that page refers: ['http://hl7.org/fhir/4.3/StructureDefinition/profile-Binary|0.1.0', 'http://hl7.org/fhir/StructureDefinition/Binary|5.0.0'] 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/4.3/StructureDefinition/extension-ImplementationGuide.definition.page.name base: http://hl7.org/fhir/StructureDefinition/Extension|5.0.0 version: 0.1.0 required: [url, valueReference, value]