description: This cross-version extension represents ImplementationGuide.definition.parameter.code from http://hl7.org/fhir/StructureDefinition/ImplementationGuide|4.0.1 for use in FHIR R5. package_name: hl7.fhir.uv.xver-r4.r5 derivation: constraint name: ext_R4_ImplementationGuide_de_pa_code type: Extension elements: value: base: {path: 'Extension.value[x]'} short: apply | path-resource | path-pages | path-tx-cache | expansion-parameter | rule-broken-links | generate-xml | generate-json | generate-turtle | html-template choices: [valueCode] index: 1 valueCode: base: {path: 'Extension.value[x]'} type: code short: apply | path-resource | path-pages | path-tx-cache | expansion-parameter | rule-broken-links | generate-xml | generate-json | generate-turtle | html-template choiceOf: value index: 2 url: pattern: {type: Uri, value: 'http://hl7.org/fhir/4.0/StructureDefinition/extension-ImplementationGuide.definition.parameter.code'} index: 3 package_version: 0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/4.0/StructureDefinition/extension-ImplementationGuide.definition.parameter.code base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]