{description: CodeSystem to identify the type of period data being recorded., package_name: fhir.r4.ukcore.stu3.currentbuild, name: UKCorePeriodType, type: null, package_version: 0.0.11-pre-release, class: unknown, kind: null, url: 'https://fhir.hl7.org.uk/CodeSystem/UKCore-PeriodType', version: 1.0.0}