This is the ValueSet that contains all the codes in eCH-011 FirstNameDataTypes (http://fhir.ch/ig/ch-core/ValueSet/ech-11-firstnamedatatype) and eCH-011 FirstNameDataTypes (http://fhir.ch/ig/ch-core/ValueSet/ech-11-firstnamedatatype). E.g. what you have to deal with if you get resources containing codes in either of them