This is the ValueSet that contains all the codes in IMMZ.D.DE126 ValueSet for Disease targeted (http://smart.who.int/immunizations/ValueSet/IMMZ.D.DE126) and IMMZ.D.DE126 ValueSet for Disease targeted (http://smart.who.int/immunizations/ValueSet/IMMZ.D.DE126). E.g. what you have to deal with if you get resources containing codes in either of them