This is the ValueSet that contains all the codes in EDQM - RouteOfAdministration (http://fhir.ch/ig/ch-term/ValueSet/edqm-routeofadministration) and EDQM - RouteOfAdministration (http://fhir.ch/ig/ch-term/ValueSet/edqm-routeofadministration). E.g. what you have to deal with if you get resources containing codes in either of them