NPDUIS Unique Identification of Drug Products

Drug Identification Numbers (DIN) are numbers assigned by Health Canada to represent drug products that have been approved for use in Canada.

Drug product information reported in NDPUIS is updated monthly and DINs reported are based on:

 

  • The status of DIN Assigned, Marketed or Inactivated according to the most current Health Canada Drug Product Database Extract. Products considered to be Marketed by Health Canada will be identified in NPDUIS with Market Flag equal to "Y"
  • Products considered to be human and non-homeopathic. Products assigned with a schedule of homeopathic, as defined by Health Canada, are not included in NPDUIS.

Drug Products have two classification systems associated to them. The ATC as assigned by World Health Organization (WHO) or the AHFS as assigned by American Society of Health-System Pharmacists (ASHP).

Health Canada assigns these classifications based on available Canadian product information as submitted by the product manufacturer

  • Some DINs do not have Health Canada assigned ATCs:
    • These DINs will have a default ATC of "Y99YY99"
    • The ATC description will be "Unassigned"
  • Some DINs do not have Health Canada assigned AHFS Numbers:
    • These DINs will have a default AHFS Number of "YY:YY:YY:YY"
    • The AHFS description will be "Unassigned"
  • Some DINs have more than one AHFS assigned by Health Canada
    • These DINs will be allocated one of the assigned AHFSs

Pseudo-Drug Identification Numbers (PDINs) are numbers that represent specific products within a province, assigned and managed by the jurisdiction and/or claims adjudicator.

  • Unique identification of non-drug products is out-of-scope
  • PDIN brand name will be reported as submitted to NPDUIS
  • PDIN brand names will not be standardized by the Jurisdiction
  • PDIN description can be submitted in French or English and will not be translated
  • PDINs will be reported based on both the province and jurisdiction data elements in order to uniquely identify them across jurisdictions
  • Jurisdiction-specific PDINs are used to identify drug products or a group of drug products that have Health Canada assigned DINs:
    • Pseudo-DINs could be used to roll up many DINs into one drug product (e.g. acetaminophen)
    • Pseudo-DINs could be used to identify specific package sizes for a drug product with the same DIN (e.g. insulin)
    • To maintain consistency with claims data, PDINs will not be mapped to corresponding DINs
    • To support the production of comparability reports, a PDIN will be assigned the ATC of the corresponding DIN
  • Jurisdiction-specific PDINs used to identify products or a group of products that do not have Health Canada assigned DINs:
    • These PDINs will have a default ATC of "Z99ZZ99"
    • The ATC description will be "Not Applicable"
    • These PDINs will have a default AHFS Numbers of "ZZ:ZZ:ZZ:ZZ"
    • The AHFS description will be "Not Applicable"