{
  "resourceType": "ValueSet",
  "status": "draft",
  "name": "AllHcAigcVS",
  "id": "all-hc-aigc",
  "title": "DPD active-ingredient group code (AIGC) -- all codes",
  "description": "The Health Canada Drug Product Database active-ingredient group CODE (AIGC) -- five digits,\nnaming the active-ingredient composition of a drug product with strength dropped.\n\nIt is positions 3 through 7 of the ten-digit active-ingredient group number (AIGN): that number\ndecomposes as [2 digits: how many active ingredients][**5 digits: this code**][3 digits: strength\ngroup], so this is the middle portion, the one that says which ingredients without saying how much.\n\n**That is why an allergy carries this code and a prescription carries the number.** A patient is\nallergic to an ingredient, not to a milligram; an allergen coded at a strength would fail to match\nthe same drug dispensed at another strength, which is a silent miss rather than an error. This\nspecification pins this system on `AllergyIntolerance.code.coding[aigc]` and pins the full number on\nthe medication profiles, and the asymmetry is deliberate.\n\n**To match the two, take positions 3 through 7 of a medication's AIGN and compare them to this\ncode.** They are not equal as strings.\n\nPublished by **Health Canada** through the Drug Product Database; the code system identity is\npublished by **HL7 Canada** through HL7 Terminology (THO). Obtain the codes from the Drug Product\nDatabase: <https://health-products.canada.ca/dpd-bdpp/>, with terminology notes at\n<https://www.canada.ca/en/health-canada/services/drugs-health-products/drug-products/drug-product-database/terminology.html>.\nNothing here is licence-encumbered.\n\nThe canonical URI is `http://terminology.hl7.org/CodeSystem/v3-hc-aigc`; the corresponding OID is\n`2.16.840.1.113883.5.1104`.\n\n**The set enumerates no codes of its own.** It includes the whole system, so it means every code in it, and it exists so the system URI resolves to a definition rather than to nothing. The definition itself stays with the publisher at the canonical above: this specification does not redefine the system and does not restrict it. Where this page shows a list of codes, that list is a SAMPLE reproduced under the publisher's own terms and is not the set's content -- the page says how many of how many it is showing.",
  "url": "https://fhir.apps.health/ValueSet/all-hc-aigc",
  "experimental": false,
  "date": "2026-08-22",
  "publisher": "WELLSTAR Technologies Corp.",
  "copyright": "The active-ingredient group code is published by Health Canada through the Drug Product Database, under the Open Government Licence -- Canada 2.0. The code system identity is published by HL7 Canada through HL7 Terminology (THO), which is made available under CC0. Contains information licensed under the Open Government Licence -- Canada, obtained from Health Canada's Drug Product Database. This does not imply endorsement by Health Canada. The set itself enumerates no codes; the sample of codes shown on this specification's rendered page is reproduced on that basis.",
  "compose": {
    "include": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-hc-aigc"
      }
    ]
  }
}