Union of http://terminology.hl7.org/CodeSystem/EPSG-GeodeticParameterDataset and http://terminology.hl7.org/CodeSystem/EPSG-GeodeticParameterDataset

This is the CodeSystem that contains all the codes in EPSG Geodetic Parameter Dataset (http://terminology.hl7.org/CodeSystem/EPSG-GeodeticParameterDataset) and EPSG Geodetic Parameter Dataset (http://terminology.hl7.org/CodeSystem/EPSG-GeodeticParameterDataset). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: CodeSystem d1c8b6ec-a80e-4fac-a75a-4c2360d0fb6d-185

This code system http://hl7.org/fhir/comparison/CodeSystem/d1c8b6ec-a80e-4fac-a75a-4c2360d0fb6d-185 defines codes, but no codes are represented here

Code