description: An interval of time that recurs periodically. Periodic intervals have two properties, phase and period. The phase specifies the \"interval prototype\" that is repeated every period. package_name: hl7.cda.uv.core derivation: specialization name: PIVL_TS type: http://hl7.org/cda/stds/core/StructureDefinition/PIVL_TS elements: value: representation: [xmlAttr] index: 0 phase: {type: 'http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS', label: Phase, index: 1} period: {type: 'http://hl7.org/cda/stds/core/StructureDefinition/PQ', label: Period, index: 2} alignment: type: code label: Alignment to the Calendar representation: [xmlAttr] index: 3 institutionSpecified: type: boolean label: Institution Specified Timing representation: [xmlAttr] index: 4 package_version: 2.0.0-sd-snapshot1 class: logical kind: logical url: http://hl7.org/cda/stds/core/StructureDefinition/PIVL-TS base: http://hl7.org/cda/stds/core/StructureDefinition/SXCM-TS version: 2.0.0-sd-snapshot1