GLOSSARYUS
Unique Device Identifier (US)
A code that identifies a device through its distribution and use. The device identifier is fixed and identifies the version or model and the labeler. The production identifier varies and can show the lot, serial number, expiration date, or manufacture date.
Avoid This Mistake
The production identifier is conditional: it appears only when the lot or batch, serial number, expiration date, or manufacture date is on the label.