http://hl7.org/fhir/StructureDefinition/contactpoint-purpose|5.2.0

Indicates the reasons that are considered appropriate to reach out to the contactable entity via this particular mechanism.  Only for use when the ContactPoint is NOT nested inside ExtendedContactDetail.
Base: http://hl7.org/fhir/StructureDefinition/Extension4.0.1, 5.0.0, 4.0.1
Type: Extension (a.k.a: http://hl7.org/fhir/StructureDefinition/Extension)
Type dependencies: 0
Elements