This is the ValueSet that contains all the codes in SNOMED CT Medication Codes (http://hl7.org/fhir/ValueSet/medication-codes) and Medication Clinical Drug (http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1010.4). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: ValueSet 57021175-490f-41b5-a08d-efd4d5c29291-92
This value set includes codes based on the following rules:
http://snomed.info/sct where concept is-a 410942007 (Drug or medicament (substance))http://snomed.info/sct where concept is-a 373873005 (Pharmaceutical / biologic product (product))http://snomed.info/sct where concept is-a 106181007 (Immunologic substance)