device identifier
A device identifiera mandatory, fixed portion of a UDI that identifies the specific version or model of a device and the labeler of that device; and
Source
21 CFR § 803.3
Scoping language
Some of the terms we use in this part are specific to medical device reporting and reflect the language used in the statute . Other terms are more general and reflect our interpretation of the law. This section defines the following terms as used in this part: