UN (1328)    ERX SERVICE REASON CODES (52.45)

Name Value
SERVICE REASON CODE UN
BRIEF DESCRIPTION Unique Ingredient Identifier
CODE TYPE ABBREVIATION PQC
CODE DESCRIPTION PRODUCT QUALIFIER CODE
FULL DESCRIPTION
The UNII is a part of the joint USP/FDA Substance Registration System (SRS),
which has been designed to support health information technology initiatives by
providing unique identifiers for substances in drugs, biologics, foods, and
devices based on molecular structure and/or descriptive information. The SRS is
used to generate permanent, unique, unambiguous identifiers for substances in
regulated products, such as ingredients in drug products.