This is the ValueSet that contains codes in both IMMZD2DTDTPOnTimeStart ValueSet for Decision Table (http://smart.who.int/immunizations/ValueSet/IMMZD2DTDTPOnTimeStartVS) and IMMZD2DTDTPOnTimeStart ValueSet for Decision Table (http://smart.who.int/immunizations/ValueSet/IMMZD2DTDTPOnTimeStartVS).