Union of http://terminology.hl7.org/CodeSystem/icd-o and http://terminology.hl7.org/CodeSystem/icd-o

This is the CodeSystem that contains all the codes in International Classification of Diseases for Oncology (http://terminology.hl7.org/CodeSystem/icd-o) and International Classification of Diseases for Oncology (http://terminology.hl7.org/CodeSystem/icd-o). 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-b7e1-93fd79025b05-1082

This code system http://hl7.org/fhir/comparison/CodeSystem/79ef1cfb-ecb3-468a-b7e1-93fd79025b05-1082 defines codes, but no codes are represented here

Code