This is the ValueSet that contains all the codes in CH PPQm Feed Request HTTP Method (http://fhir.ch/ig/ch-epr-fhir/ValueSet/PpqmFeedRequestHttpMethod) and CH PPQm Feed Request HTTP Method (http://fhir.ch/ig/ch-epr-fhir/ValueSet/PpqmFeedRequestHttpMethod). E.g. what you have to deal with if you get resources containing codes in either of them