This is the CodeSystem that contains all the codes in Overview usage mode (http://ehealth.sundhed.dk/cs/overviewUsageMode) and Overview usage mode (http://ehealth.sundhed.dk/cs/overviewUsageMode). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem 557d853a-8aa7-4722-9b4a-6a18e06a68c1-170
This code system http://hl7.org/fhir/comparison/CodeSystem/557d853a-8aa7-4722-9b4a-6a18e06a68c1-170
defines codes, but no codes are represented here