This is the CodeSystem that contains all the codes in RadLex radiology lexicon (http://radlex.org) and RadLex radiology lexicon (http://radlex.org). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem ceaac9ad-f8a4-45dd-ac3b-287f763986d9-458
This code system http://hl7.org/fhir/comparison/CodeSystem/ceaac9ad-f8a4-45dd-ac3b-287f763986d9-458 defines codes, but no codes are represented here
http://hl7.org/fhir/comparison/CodeSystem/ceaac9ad-f8a4-45dd-ac3b-287f763986d9-458