description: Allows to indicate a time period in a person's life as a reference to a coded value for that life period. package_name: hl7.fhir.eu.imaging-r5 derivation: constraint name: PeriodsOfLifeExtension type: Extension elements: extension: {index: 0} url: pattern: {type: uri, value: 'http://hl7.eu/fhir/imaging-r5/StructureDefinition/periods-of-life-extension'} type: uri index: 1 value: choices: [valueCodeableConcept] index: 3 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 4} package_version: 0.1.0-ballot extensions: {} class: extension kind: complex-type url: http://hl7.eu/fhir/imaging-r5/StructureDefinition/periods-of-life-extension base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.1.0-ballot