Union of http://hl7.org/fhir/sid/icd-10 and http://hl7.org/fhir/sid/icd-10

This is the CodeSystem that contains all the codes in ICD-10 (http://hl7.org/fhir/sid/icd-10) and ICD-10 (http://hl7.org/fhir/sid/icd-10). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: CodeSystem d90c6776-070a-4707-b535-0a35f2e2298a-1091

This code system http://hl7.org/fhir/comparison/CodeSystem/d90c6776-070a-4707-b535-0a35f2e2298a-1091 defines codes, but no codes are represented here

Code