description: This cross-version extension represents NamingSystem.replacedBy from http://hl7.org/fhir/StructureDefinition/NamingSystem|1.0.2 for use in FHIR R5. package_name: hl7.fhir.uv.xver-r2.r5 derivation: constraint name: ext_R2_NamingSystem_replacedBy type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Use this instead choices: [valueReference] index: 1 valueReference: base: {path: 'Extension.value[x]'} type: Reference short: Use this instead choiceOf: value refers: ['http://hl7.org/fhir/StructureDefinition/NamingSystem'] index: 2 url: pattern: {type: uri, value: 'http://hl7.org/fhir/1.0/StructureDefinition/extension-NamingSystem.replacedBy'} type: uri index: 3 package_version: 0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/1.0/StructureDefinition/extension-NamingSystem.replacedBy base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]