This is the ValueSet that contains all the codes in HZV-Teilnahmestatus (https://fhir.cognovis.de/praxis/ValueSet/hzv-participation) and HZV-Teilnahmestatus (https://fhir.cognovis.de/praxis/ValueSet/hzv-participation). E.g. what you have to deal with if you get resources containing codes in either of them