This is the ValueSet that contains all the codes in Chlamydia trachomatis test type ValueSet (http://smart.who.int/hiv/ValueSet/HIV.D.DE836) and Chlamydia trachomatis test type ValueSet (http://smart.who.int/hiv/ValueSet/HIV.D.DE836). E.g. what you have to deal with if you get resources containing codes in either of them