http://hl7.org/fhir/StructureDefinition/cqm-ValidityPeriod|4.0.1

The period in which the catalog is valid.

element_id	types
Extension
Extension.extension
Extension.url
Extension.value[x]	dateTime
Extension
Extension.id	http://hl7.org/fhirpath/System.String
Extension.extension	Extension
Extension.url	http://hl7.org/fhirpath/System.String
Extension.value[x]	dateTime