Keeping up with UDI compliance is not just about following the rules. It helps medical procurement teams make smarter, faster, and safer decisions. Whether you’re ordering, stocking, or tracking devices, understanding UDI is key to avoiding mistakes and staying aligned with FDA requirements.

This checklist will guide your team step-by-step through what matters, what’s required, and what to avoid.

What is UDI and why it matters

UDI stands for Unique Device Identification. It’s a system that helps you identify medical devices using a specific code. That code must be on the device label and packaging. It should also be stored in a government database.

Each UDI has two main parts:

• Device Identifier (DI): This part never changes. It tells you the device’s model and who made it.
  
• Production Identifier (PI): This part changes with each batch or unit. It can include the lot number, serial number, expiration date, and manufacturing date.

For procurement teams, UDI gives better visibility into what is being ordered and used. It also makes it easier to track recalls, manage stock, and reduce mix-ups in the supply chain.

Who is responsible for UDI compliance?

The main responsibility falls on the company that places the label on the device. That’s often the manufacturer. But if your organization repackages or relabels devices before use, then you may also be considered a labeler.

Even if you’re not the labeler, your team still needs to know how to check for UDI and how to store UDI data in your system.

Devices that require UDI

Most medical devices require a UDI. These include:

• Class I, II, and III devices
  
• Implantable devices
  
• Reusable surgical instruments
  
• Kits and convenience packs that contain multiple devices

Devices must have UDI on both the label and packaging. Some also require a direct mark on the device itself, especially if it’s reusable.

Key UDI deadlines to know

The FDA set rollout deadlines based on device class. Most deadlines have passed, and all products sold now should already meet UDI rules. But old inventory may still be in use.

Here are the major milestones:

• Class III: Compliance required since 2014
  
• Class II: Since 2016
  
• Class I: Since 2018
  
• Full enforcement across all devices: 2023

If your facility still has devices without UDI, those should be reviewed and phased out as soon as possible.

Step-by-step UDI compliance checklist

1. Assign a UDI lead

Start by choosing someone to lead UDI efforts. This person will coordinate between your supply chain, compliance, and IT teams.

2. Audit your current inventory

Go through your inventory and check that each item has:

• A readable UDI label
  
• A barcode or 2D code
  
• A traceable DI and PI in your database

For items that don’t have this info, flag them for review.

3. Check your systems

Make sure your software can:

• Capture both the DI and PI
  
• Store UDI data with your product records
  
• Track expiration dates, lot numbers, and serial numbers

Talk to your IT team about any updates or custom fields needed in your ERP or inventory software.

4. Train your team

Your buyers, receivers, and warehouse staff need to know:

• What UDI is
  
• How to read it
  
• How to scan it
  
• How to enter or verify it in your system

Even simple errors, like typing in the wrong digit, can create problems with recalls or audits.

5. Work with suppliers

Reach out to your suppliers and confirm:

• That all products shipped to you are UDI-compliant
  
• That packaging and labels meet FDA standards
  
• That data is consistent between the label and the product insert

If a supplier isn’t providing UDI-compliant products, flag it for sourcing review.

6. Store UDI data in your system

Your internal records should include:

• The full DI for each product
  
• The PI for each individual item or batch
  
• Where the device was used or shipped
  
• When it was received

This will help with traceability, restocking, and compliance audits.

7. Run regular UDI audits

Once UDI is set up, it needs to be maintained. At least twice a year, check:

• That all UDI fields are being entered and stored correctly
  
• That nothing is being mislabeled or skipped
  
• That any software changes didn’t affect UDI fields

Add UDI checks to your broader quality assurance reviews.

Common pitfalls to avoid

Even with good systems in place, some mistakes happen often. Here’s what to watch for:

• Missing or damaged barcodes: Replace packaging or flag product if barcodes can’t be scanned.
  
• Mixing up DI and PI: Train staff clearly on which part stays the same and which changes.
  
• Forgetting direct marking rules: Reusable tools may need UDI on the device itself, not just the label.
  
• Skipping internal audits: This leads to compliance gaps that may only show up during inspections.

Simple tools to stay compliant

Procurement teams don’t need expensive new systems to manage UDI. Often, small changes go a long way. Make use of:

• Barcode scanners that can read 2D DataMatrix codes
  
• A centralized product master list with DI and PI
  
• Label printers that support GS1 or HIBC formats
  
• Shared folders or dashboards for UDI tracking

Ask your software vendor if they offer UDI-specific features or updates.

Keep it clean, keep it clear

UDI may seem like just another regulation. But when used well, it protects patients, avoids risk, and gives your team better control of the supply chain.

By following this checklist, your team can stay organized and in control of UDI compliance every day.