This is the ValueSet that contains all the codes in Coverage Class Codes (http://hl7.org/fhir/ValueSet/coverage-class) and BFS Medizinische Statistik - 21 1.3.V02 - Klasse / Classe / Classe (http://fhir.ch/ig/ch-core/ValueSet/bfs-medstats-21-encountertype). E.g. what you have to deal with if you get resources containing codes in either of them