description: This cross-version extension represents ClaimResponse.insurance.preAuthRef from http://hl7.org/fhir/StructureDefinition/ClaimResponse|3.0.2 for use in FHIR R4. package_name: hl7.fhir.uv.xver-r3.r4 derivation: constraint name: ext_R3_ClaimResponse_in_preAuthRef type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Pre-Authorization/Determination Reference choices: [valueString] index: 1 valueString: base: {path: 'Extension.value[x]'} type: string short: Pre-Authorization/Determination Reference choiceOf: value index: 2 url: pattern: {type: Uri, value: 'http://hl7.org/fhir/3.0/StructureDefinition/extension-ClaimResponse.insurance.preAuthRef'} index: 3 package_version: 0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/3.0/StructureDefinition/extension-ClaimResponse.insurance.preAuthRef base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]