This is the ValueSet that contains all the codes in CH ELM Results HIV Recency (http://fhir.ch/ig/ch-elm/ValueSet/ch-elm-results-component-hiv-recency) and CH ELM Results HIV Recency (http://fhir.ch/ig/ch-elm/ValueSet/ch-elm-results-component-hiv-recency). E.g. what you have to deal with if you get resources containing codes in either of them