This code system http://hl7.org/fhir/v2/0548 defines the following codes:

CodeDisplay
1Self
2Parent
3Next of Kin
4Durable Power of Attorney in Healthcare Affairs
5Conservator
6Emergent Practitioner (practitioner judging case as emergency requiring care without a consent)
7Non-Emergent Practitioner (i.e. medical ethics committee)

Additional Language Displays

CodeDeutsch (German, de)
1
2Eltern
3
4
5
6
7