{{RegDocument | area_of_validity = EU | scope = MD | document_type = Regulation – Article Reference | name = MDR 2017/745 – Articles 27–29 & Annex VI: Unique Device Identification (UDI) | version = 2017/745 | source = https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32017R0745#d1e3455-1-1 | language = EN, DE, FR | status = Current | restricted_access = No }} Articles 27 to 29 and Annex VI of the MDR establish the Unique Device Identification (UDI) system for medical devices placed on the EU market. == Summary == The UDI system enables unambiguous identification and traceability of devices throughout the supply chain and during clinical use. Key obligations: * Article 27 – UDI assignment and registration in EUDAMED * Article 28 – UDI database (part of EUDAMED) * Article 29 – Registration of devices and economic operators in EUDAMED * Annex VI Part C – Requirements for the UDI carrier (label placement, symbology) Application dates vary by device class: * Class III and implantable: May 2021 * Class IIa and IIb: May 2023 * Class I: May 2025 == Related documents == * [[Medical Device Regulation (EU) 2017/745]] – Parent document * [[IVDR (EU) 2017/746 – Articles 24–26 & Annex VI: UDI]] – Equivalent provision for IVDs [[Category:Medical Devices]] [[Category:Labelling]] [[Category:Traceability]]