description: null package_name: uk.nhsdigital.r4.test derivation: constraint name: ExtensionClaimMedicationRequestReference type: Extension elements: url: pattern: {type: Uri, value: 'https://fhir.nhs.uk/StructureDefinition/Extension-ClaimMedicationRequestReference'} index: 0 value: choices: [valueReference] index: 2 valueReference: type: Reference choiceOf: value refers: ['https://fhir.nhs.uk/StructureDefinition/NHSDigital-MedicationRequest'] index: 3 value[x]: elements: identifier: index: 4 elements: system: pattern: {type: Uri, value: 'https://fhir.nhs.uk/Id/prescription-order-item-number'} index: 5 value: {index: 6} required: [value, system] required: [identifier] package_version: 2.8.8-prerelease class: extension kind: complex-type url: https://fhir.nhs.uk/StructureDefinition/Extension-ClaimMedicationRequestReference base: http://hl7.org/fhir/StructureDefinition/Extension version: null