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Unique Device Identification System: Form and Content of the Unique Device Identifier (UDI): Guidance for Industry and Food and Drug Administration Staff

FinalCenter for Biologics Evaluation and Research Center for Devices and Radiological Health07/07/2021

Description

This document is intended to assist labelers and FDA-accredited issuing agencies in complying with unique device identifier (UDI) labeling requirements, including by clarifying FDA’s interpretation of certain requirements under 21 CFR 801.40. Specifically, this guidance describes the requirements for and FDA’s recommendations regarding the form and content of the UDI to help ensure that the UDIs developed under systems for the issuance of UDIs meet the objectives of the Unique Device Identification System Final Rule, 78 FR 58786 (September 24, 2013) (UDI Rule).

Scope & Applicability

Product Classes

4
Class I device

Device category that may be exempt from certain UDI requirements if GMP exempt.

Class II device

Device classification mentioned regarding novel sterilization methods

HCT/P

Human cells, tissues, and cellular and tissue-based products regulated as devices; Human cells, tissues, and cellular and tissue-based products regulated as medical devices; Human Cell, Tissue or Cellular or Tissue-Based Product

stand-alone software

Software not part of a hardware medical device, subject to specific UDI labeling.

Stakeholders

2
labeler

Person who causes a label to be applied to a device for commercial distribution; Entity required to enter DI and attribute information into GUDID; Entity responsible for GUDID account and device information; Responsible for ensuring DI record information is accurate and up-to-date.; Entity identified by a GUDID account; Entity responsible for GUDID data and recordkeeping.

FDA-accredited issuing agency

Organization accredited by FDA to operate a UDI issuance system; Entity that operates a system for UDI assignment; Organizations that provide guidelines for including non-UDI elements.

Regulatory Context

Attributes

4
direct marking

UDI provided on the device itself

expiration date

Required label element for outsourcing facilities

quantity

Non-UDI element that may be included in the UDI carrier but is not part of the UDI.

software version

Included in the definition of lot or batch for stand-alone software.

Related CFR Sections (9)

Related Warning Letters (4)

  • CGMP/QSR/Medical Devices/Adulterated

    NeuroSync, Inc.

    2025-05-20
  • CGMP/QSR/Medical Devices/Adulterated/Misbranded

    Argon Medical Productions & Vertrieb Gesellschaft MBH & CO

    2024-10-29
  • Investigational Device Exemptions (IDE)/Premarket Approval Application (PMA) Adulterated Device

    AG Essence, Inc.

    2024-07-09
  • CGMP/QSR/Medical Devices/Misbranded

    Wello Inc.

    2023-11-14

See Also (8)