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Pharmaceutical codes are used in medical classification to uniquely identify medication. They may uniquely identify an active ingredient, drug system (including inactive ingredients and time-release agents) in general, or a specific pharmaceutical product from a specific manufacturer.

• Examples

• See also

• References

Drug system identifiers (manufacturer-specific including inactive ingredients):

• National Drug Code (NDC) — administered by Food and Drug Administration.cite-ref-1[1]

• Drug Identification Number (DIN) — administered by Health Canada under the Food and Drugs Act

• Hong Kong Drug Registration — administered by the Pharmaceutical Service of the Department of Health (Hong Kong)

• National Pharmaceutical Product Index - South Africa

Hierarchical systems:

• Anatomical Therapeutic Chemical Classification System (AT, or ATC/DDD) — administered by World Health Organization

• Generic Product Identifier (GPI) — hierarchical classification number published by MediSpan

• SNOMED — C axis

Ingredients:

• Unique Ingredient Identifier

Proprietary database identifiers include those assigned by First Databank, Micromedex, MediSpan, Gold Standard Drug Database (published by Elsevier), and Cerner Multum MediSource Lexicon; these are cross-indexed by RxNorm, which also assigns a unique identifier (RxCUI) to every combination of active ingredient and dose level.cite-ref-2[2]

• Drug nomenclature

• Drug class

cite-note-11. ↑ "National Drug Code Directory". U.S. Food and Drug Administration. 5 May 2017.

cite-note-22. ↑ RxNorm Overview