This is the CodeSystem that contains all the codes in CodeSystem message events (https://www.ehealth.fgov.be/standards/fhir/mycarenet/CodeSystem/message-events) and CodeSystem message events (https://www.ehealth.fgov.be/standards/fhir/mycarenet/CodeSystem/message-events). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem 70d65305-ec55-4f64-90dc-7221a1e847dc-23
This code system http://hl7.org/fhir/comparison/CodeSystem/70d65305-ec55-4f64-90dc-7221a1e847dc-23
defines codes, but no codes are represented here