This is the CodeSystem that contains all the codes in CH - Medicinal Product Name Type (http://fhir.ch/ig/ch-epl/CodeSystem/ch-medicinal-product-name-type) and CH - Medicinal Product Name Type (http://fhir.ch/ig/ch-epl/CodeSystem/ch-medicinal-product-name-type). E.g. what you have to deal with if you get resources containing codes in either of them