Union of http://hl7.org/fhir/sid/icd-10-nl and http://hl7.org/fhir/sid/icd-10-nl
This is the CodeSystem that contains all the codes in ICD10 NL (http://hl7.org/fhir/sid/icd-10-nl) and ICD10 NL (http://hl7.org/fhir/sid/icd-10-nl). E.g. what you have to deal with if you get resources containing codes in either of them