This is the CodeSystem that contains all the codes in Contributor Summary Type (http://terminology.hl7.org/CodeSystem/contributor-summary-type) and Contributor Summary Type (http://terminology.hl7.org/CodeSystem/contributor-summary-type). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem 307062cf-3328-47a5-98c4-9e03a40cc5cb-287
This code system http://hl7.org/fhir/comparison/CodeSystem/307062cf-3328-47a5-98c4-9e03a40cc5cb-287 defines codes, but no codes are represented here