This case-insensitive code system http://hl7.org/fhir/NamingSystem/ca-hc-din defines codes, but no codes are represented here
A Drug Identification Number (DIN) is a computer-generated eight digit number assigned by Health Canada to a drug product prior to being marketed in Canada. It uniquely identifies all drug products sold in a dosage form in Canada and is located on the label of prescription and over-the-counter drug products that have been evaluated and authorized for sale in Canada. A DIN uniquely identifies the following product characteristics: * manufacturer * product name * active ingredient(s) * strength(s) of active ingredient(s) * pharmaceutical form, and * route of administration. Note: The number has a leading zero. Further information about this Code System can be found at https://www.canada.ca/en/health-canada/services/drugs-health-products/drug-products/applications-submissions/guidance-documents/regulatory-requirements-drug-identification-numbers/document.html