http://hl7.org/fhir/StructureDefinition/patient-unknownIdentity|5.2.0

Indicates whether or not the patient's/person's identity is known.
NameFlagsCardTypeDescription & Constraints
Extension
0..1Patient/person's identity is known/unknown
 
extension
?..0
 
url
?..?
 
value[x] *
1..? PatientIdentityUnknown (extensible)
 
 
valueCodeableConcept *
1..?CodeableConcept PatientIdentityUnknown (extensible)