Intersection of http://terminology.hl7.org/CodeSystem/W1-W2 and http://terminology.hl7.org/CodeSystem/W1-W2
This is the CodeSystem that contains codes in both WHO rec# drug codes (http://terminology.hl7.org/CodeSystem/W1-W2) and WHO rec# drug codes (http://terminology.hl7.org/CodeSystem/W1-W2).