This is the ValueSet that contains codes in both IMMZD18SDTPPregnancyStartingWith4Doses ValueSet for Decision Table (http://smart.who.int/immunizations/ValueSet/IMMZD18SDTPPregnancyStartingWith4DosesVS) and IMMZD18SDTPPregnancyStartingWith4Doses ValueSet for Decision Table (http://smart.who.int/immunizations/ValueSet/IMMZD18SDTPPregnancyStartingWith4DosesVS).