### Question
What is the definition of standardized numerical identifier?


### Answer
The definition of **standardized numerical identifier** is as follows in *21 U.S.C. § 360eee*:

> a set of numbers or characters used to uniquely identify each package or homogenous case that is composed of the National Drug Code that corresponds to the specific product (including the particular package configuration) combined with a unique alphanumeric serial number of up to 20 characters

#### Citation:
  - *21 U.S.C. § 360eee*
  - Heading: **CHAPTER 9-FEDERAL FOOD, DRUG, AND COSMETIC ACT > SUBCHAPTER V-DRUGS AND DEVICES > Part H-Pharmaceutical Distribution Supply Chain**

