Union of https://www.meddra.org and https://www.meddra.org

This is the CodeSystem that contains all the codes in Medical Dictionary for Regulatory Activities (https://www.meddra.org) and Medical Dictionary for Regulatory Activities (https://www.meddra.org). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: CodeSystem 79ef1cfb-ecb3-468a-b7e1-93fd79025b05-1271

This code system http://hl7.org/fhir/comparison/CodeSystem/79ef1cfb-ecb3-468a-b7e1-93fd79025b05-1271 defines codes, but no codes are represented here

Code