This is the ValueSet that contains all the codes in MDC IDC Device Types (http://hl7.org/fhir/uv/cardx-cied/ValueSet/MDCIDCDeviceTypes) and MDC IDC Device Types (http://hl7.org/fhir/uv/cardx-cied/ValueSet/MDCIDCDeviceTypes). E.g. what you have to deal with if you get resources containing codes in either of them