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.
NameFlagsCardTypeDescription & Constraints
Extension
0..1Comment associated with the ContactPoint
 
extension
?..0
 
url
?..?
 
value[x] *
1..?
 
 
valueCodeableConcept *
1..?CodeableConcept