Union of http://terminology.hl7.org/CodeSystem/CAS and http://terminology.hl7.org/CodeSystem/CAS

This is the CodeSystem that contains all the codes in Chemical abstract codes (http://terminology.hl7.org/CodeSystem/CAS) and Chemical abstract codes (http://terminology.hl7.org/CodeSystem/CAS). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: CodeSystem 20bc3134-ebe2-4c64-81ac-614a70124787-56

This code system http://hl7.org/fhir/comparison/CodeSystem/20bc3134-ebe2-4c64-81ac-614a70124787-56 defines codes, but no codes are represented here

Code