description: Allows the referencing of Device within Specimen.container. package_name: fhir.r4.ukcore.stu3.currentbuild derivation: constraint name: ExtensionUKCoreSpecimenContainerDevice type: Extension elements: url: pattern: {type: uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-Specimen.container.device'} type: uri index: 0 value: short: Device resource for the container. choices: [valueReference] index: 2 valueReference: type: Reference short: Device resource for the container. choiceOf: value refers: ['https://fhir.hl7.org.uk/StructureDefinition/UKCore-Device'] index: 3 package_version: 0.0.15-pre-release class: extension kind: complex-type url: http://hl7.org/fhir/5.0/StructureDefinition/extension-Specimen.container.device base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1 required: [value, valueReference]