This is the ValueSet that contains all the codes in Medicine Route of Administration - IPS (http://hl7.org/fhir/uv/ips/ValueSet/medicine-route-of-administration) and Medicine EDQM Route of Administration - IPS (http://hl7.org/fhir/uv/ips/ValueSet/medicine-route-of-administration). E.g. what you have to deal with if you get resources containing codes in either of them