This is the CodeSystem that contains all the codes in EHMI Endpoint Register (EER) - MedComMessageDefinitionType CodeSystem (http://medcomehmi.dk/ig/terminology/CodeSystem/eer-medcom-message-definition-type) and EHMI Endpoint Register (EER) - MedComMessageDefinitionType CodeSystem (http://medcomehmi.dk/ig/terminology/CodeSystem/eer-medcom-message-definition-type). E.g. what you have to deal with if you get resources containing codes in either of them