CliniGA CRO

CliniGA CRO Blog

Basic UDI-DI: trace clinical evidence across a device family

A device family identifier becomes useful when reviewers can see which variants and claims the clinical evidence actually covers.

Cover image for: Basic UDI-DI: trace clinical evidence across a device family
Photo: National Institute of Allergy and Infectious Diseases · License: Public domain · Cropped and resized.
Published
Updated
Sources checked

A device family identifier becomes useful when reviewers can see which variants and claims the clinical evidence actually covers.

Basic UDI-DI — Define the regulatory scope

MDR Annex VI describes device identification and MDCG 2022-7 clarifies UDI concepts. Basic UDI-DI and UDI-DI serve different purposes and should not be used interchangeably.

Basic UDI-DI — Build the working record

Build a crosswalk linking Basic UDI-DI, device model, UDI-DI, intended purpose, technical file and clinical evaluation scope. Record exclusions and variant differences so a shared identifier does not conceal an evidence gap.

Basic UDI-DI — Check before release

  • Match report scope to the current model list.
  • Check variant-specific materials and performance differences.
  • Control identifier changes alongside document revisions.

Basic UDI-DI — Record the decision and handover

Approve the family coverage rationale with product data and clinical owners. Reconcile the crosswalk before submissions and public summary revisions; a database acceptance message is not a clinical evidence assessment.

Frequently asked questions

Does one Basic UDI-DI prove all variants are equivalent?
No. Identifier grouping does not establish clinical equivalence or sufficient evidence.
Is Basic UDI-DI the identifier on every package?
Do not confuse it with the UDI carrier and device-level identifiers; verify the applicable labelling requirements.

Sources

  1. Primary requirement: MDR Annex VI: device identifiers
  2. Operational guidance: MDCG 2022-7: UDI questions