Lookup for FHIR R5 Duration for use in FHIR R4

Source ElementUsageTarget
Duration.idUseElementSameNameDuration.id
Duration.extensionUseElementSameNameDuration.extension
Duration.valueUseElementSameNameDuration.value
Duration.comparatorUseExtensionhttp://hl7.org/fhir/5.0/StructureDefinition/extension-Duration.comparator
Duration.unitUseElementSameNameDuration.unit
Duration.systemUseElementSameNameDuration.system
Duration.codeUseElementSameNameDuration.code