{

"resourceType": "CodeSystem",
"id": "substance-category",
"meta": {
  "lastUpdated": "2019-11-01T09:29:23.356+11:00",
  "profile": [
    "http://hl7.org/fhir/StructureDefinition/shareablecodesystem"
  ]
},
"extension": [
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode": "oo"
  },
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode": "trial-use"
  },
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger": 2
  }
],
"url": "http://terminology.hl7.org/CodeSystem/substance-category",
"identifier": [
  {
    "system": "urn:ietf:rfc:3986",
    "value": "urn:oid:2.16.840.1.113883.4.642.4.1138"
  }
],
"version": "4.0.1",
"name": "SubstanceCategoryCodes",
"title": "Substance Category Codes",
"status": "draft",
"experimental": false,
"publisher": "HL7 Orders and Observations Workgroup",
"contact": [
  {
    "telecom": [
      {
        "system": "url",
        "value": "http://www.hl7.org/Special/committees/orders/index.cfm"
      }
    ]
  }
],
"description": "Substance category codes",
"caseSensitive": true,
"valueSet": "http://hl7.org/fhir/ValueSet/substance-category",
"content": "complete",
"concept": [
  {
    "code": "allergen",
    "display": "Allergen",
    "definition": "A substance that causes an allergic reaction."
  },
  {
    "code": "biological",
    "display": "Biological Substance",
    "definition": "A substance that is produced by or extracted from a biological source."
  },
  {
    "code": "body",
    "display": "Body Substance",
    "definition": "A substance that comes directly from a human or an animal (e.g. blood, urine, feces, tears, etc.)."
  },
  {
    "code": "chemical",
    "display": "Chemical",
    "definition": "Any organic or inorganic substance of a particular molecular identity, including -- (i) any combination of such substances occurring in whole or in part as a result of a chemical reaction or occurring in nature and (ii) any element or uncombined radical (http://www.epa.gov/opptintr/import-export/pubs/importguide.pdf)."
  },
  {
    "code": "food",
    "display": "Dietary Substance",
    "definition": "A food, dietary ingredient, or dietary supplement for human or animal."
  },
  {
    "code": "drug",
    "display": "Drug or Medicament",
    "definition": "A substance intended for use in the diagnosis, cure, mitigation, treatment, or prevention of disease in man or other animals (Federal Food Drug and Cosmetic Act)."
  },
  {
    "code": "material",
    "display": "Material",
    "definition": "A finished product which is not normally ingested, absorbed or injected (e.g. steel, iron, wood, plastic and paper)."
  }
]

}