This is the ValueSet that contains all the codes in Screenings and diagnostics for PrEP users ValueSet (http://smart.who.int/hiv/ValueSet/HIV.C.DE63) and Screenings and diagnostics for PrEP users ValueSet (http://smart.who.int/hiv/ValueSet/HIV.C.DE63). E.g. what you have to deal with if you get resources containing codes in either of them