The National Drug Code (NDC) is a unique, three-segment number used by the Food and Drug Administration (FDA) to identify drug products for commercial use. This is required by the Drug Listing Act of 1972. The FDA publishes and updates the listed NDC numbers daily.

Prefix
ndc
Links
Homepage
Contact
Missing Contact
Pattern for Local Unique Identifiers

Local identifiers in National Drug Code should match this regular expression:
^\d+\-\d+\-\d+$

Example Local Unique Identifier
0002-1975-61   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from National Drug Code should match this regular expression:
^ndc:\d+\-\d+\-\d+$

Example CURIE
ndc:0002-1975-61
Metaregistry

The metaregistry provides mappings between the Bioregistry and other registries. There are 3 mappings to external registries for ndc.

Registry Name Metaprefix External Prefix
Identifiers.org miriam ndc
Name-to-Thing n2t ndc
Prefix Commons prefixcommons NDC
Providers

Providers are various services that resolve CURIEs to URLs. The example CURIE ndc:0002-1975-61 is used to demonstrate the provides available for ndc. Generation of OLS and BioPortal URLs requires additional programmatic logic beyond string formatting.

Name Metaprefix URI
National Drug Code ndc http://www.hipaaspace.com/Medical_Billing/Coding/National.Drug.Codes/0002-1975-61
Bioregistry bioregistry https://bioregistry.io/ndc:0002-1975-61
Identifiers.org miriam https://identifiers.org/ndc:0002-1975-61
Name-to-Thing n2t https://n2t.net/ndc:0002-1975-61
Extra Providers

Additional providers curated in the Bioregistry are listed here.

Code Name URL
CURATOR_REVIEW Bio2RDF http://ndc.bio2rdf.org/describe/?url=http://bio2rdf.org/ndc:0002-1975-61