This is the CodeSystem that contains all the codes in Measure Supplemental Data (http://terminology.hl7.org/CodeSystem/measure-supplemental-data) and Measure Supplemental Data (http://terminology.hl7.org/CodeSystem/measure-supplemental-data). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem 6bc4d2ed-5dce-4b44-b5ed-4678efc979ab-566
This code system http://hl7.org/fhir/comparison/CodeSystem/6bc4d2ed-5dce-4b44-b5ed-4678efc979ab-566 defines codes, but no codes are represented here