NDC National Drug Code Directory

Food and Drug Administration (FDA)
HDB-0483

The NDC (National Drug Code) Directory is the FDA's official database containing information on active finished and unfinished drugs submitted in structured product labeling files by drug manufacturers. It includes the three-segment NDC number that identifies each drug product and is updated daily with prescription, over-the-counter, approved, unapproved, repackaged, relabeled, and compounded drug products.

Category
Terminology
Access
Open access
Region
US — US
Coverage
All finished drug products (prescription and OTC) and selected drug information
Size
Updated daily with active and historical drug products
License / terms
Public domain
Data types
drug codes, drug product information

Record HDB-0483 · last verified 2026-08-23 · listed in Terminology & standards

Related records

HDB-0072

SNOMED CT

SNOMED International SNOMED CT is a systematized nomenclature of medicine clinical terminology system maintained by SNOMED International, a non-profit organization. It provides standardized international multilingual clinical terminology used globally to code clinical findings, procedures, diagnoses, and medical concepts in healthcare systems.
Terminology Credentialed
HDB-0073

LOINC

Regenstrief Institute LOINC is an international standard for identifying health observations, measurements, and laboratory tests maintained by the Regenstrief Institute at Indiana University. It enables healthcare systems to identify, exchange, and aggregate clinical data using unique standardized codes for laboratory and clinical observations.
Terminology Open access
HDB-0074

RxNorm

National Library of Medicine RxNorm is a normalized naming system for generic and branded clinical drugs maintained by the National Library of Medicine, part of the NIH. It provides normalized drug names and links to drug vocabularies commonly used in pharmacy management and drug interaction systems for semantic interoperation.
Terminology Open access
HDB-0075

WHO ICD-11

World Health Organization The International Classification of Diseases 11th Revision (ICD-11) is the global standard for diagnostic health information maintained by the World Health Organization. It provides a standardized system for classifying diseases, disorders, injuries, and health conditions used worldwide for healthcare management and clinical documentation.
Terminology Open access