{
  "resourceType": "SubstanceDefinition",
  "id": "dermatophagoides-farinae",
  "identifier": [
    {
      "system": "http://example.europa.eu/fhir/SMSId",
      "value": "DERMFAR1S"
    }
  ],
  "status": {
    "coding": [
      {
        "system": "http://hl7.org/fhir/publication-status",
        "code": "active",
        "display": "Active"
      }
    ]
  },
  "classification": [
    {
      "coding": [
        {
          "system": "http://example.europa.eu/fhir/SubstanceType",
          "code": "structurally-diverse",
          "display": "Structurally Diverse"
        }
      ]
    }
  ],
  "domain": {
    "coding": [
      {
        "system": "http://example.europa.eu/fhir/Domain",
        "code": "human",
        "display": "Human use"
      }
    ]
  },
  "description": "Dermatophagoides farinae — American house dust mite allergen extract. A structurally diverse substance defined by its source organism rather than a discrete chemical structure, used in allergen immunotherapy products.",
  "code": [
    {
      "code": {
        "coding": [
          {
            "system": "http://example.europa.eu/fhir/Substance",
            "code": "DERMFAR1S"
          }
        ]
      }
    }
  ],
  "name": [
    {
      "name": "Dermatophagoides farinae",
      "preferred": true,
      "language": [
        {
          "coding": [
            {
              "system": "urn:ietf:bcp:47",
              "code": "en",
              "display": "English"
            }
          ]
        }
      ],
      "official": [
        {
          "authority": {
            "coding": [
              {
                "system": "http://hl7.org/fhir/substance-name-authority",
                "code": "USAN",
                "display": "USAN"
              }
            ]
          },
          "status": {
            "coding": [
              {
                "system": "http://hl7.org/fhir/publication-status",
                "code": "active",
                "display": "Active"
              }
            ]
          }
        }
      ]
    },
    {
      "name": "American house dust mite",
      "preferred": false
    }
  ],
  "sourceMaterial": {
    "type": {
      "coding": [
        {
          "system": "http://hl7.org/fhir/substance-source-material-type",
          "code": "Animal",
          "display": "Animal"
        }
      ]
    },
    "genus": {
      "coding": [
        {
          "system": "http://example.europa.eu/fhir/Genus",
          "code": "Dermatophagoides",
          "display": "Dermatophagoides"
        }
      ]
    },
    "species": {
      "coding": [
        {
          "system": "http://example.europa.eu/fhir/Species",
          "code": "farinae",
          "display": "D. farinae"
        }
      ]
    },
    "part": {
      "coding": [
        {
          "system": "http://example.europa.eu/fhir/Part",
          "code": "whole-organism",
          "display": "Whole organism"
        }
      ]
    }
  },
  "meta": {
    "tag": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-ActReason",
        "code": "HTEST",
        "display": "test health data"
      }
    ]
  }
}