Technical field rules do not override UDI law
The current swissdamed data dictionary distinguishes manufacturer SRN, Basic UDI-DI, UDI-DI, model/name, trade names and catalogue/REF. Its Updateable legend says blank means No: the REF field FLD-UDID-163 is not updateable in this version for either MD or IVD, while trade names have explicit edit/add/delete permission. The manufacturer SRN is expressly non-updateable in the business rules. Discarding a registered UDI is only for incorrect data that cannot be corrected by updating, not a general workaround for a real commercial or legal-manufacturer change.
- REF alone is not automatically a legal new-UDI trigger, but the actual traceability consequences and accepted operational route must be resolved.
- Do not treat technically editable trade names as permission to retain an identifier when incorporated UDI law requires a new one.