This is the ValueSet that contains codes in both IMMZD18SVaricella1Dose ValueSet for Decision Table (http://smart.who.int/immunizations/ValueSet/IMMZD18SVaricella1DoseVS) and IMMZD18SVaricella1Dose ValueSet for Decision Table (http://smart.who.int/immunizations/ValueSet/IMMZD18SVaricella1DoseVS).