{
  "resourceType": "Substance",
  "id": "f203",
  "text": {
    "status": "generated",
    "div": "<div><p><b>Generated Narrative with Details</b></p><p><b>id</b>: f203</p><p><b>identifier</b>: 1234</p><p><b>category</b>: Chemical <span>(Details : {http://hl7.org.fhir/substance-category code 'chemical' = '??', given as 'Chemical'})</span></p><p><b>code</b>: Potassium <span>(Details : {SNOMED CT code '88480006' = 'Potassium (substance)', given as 'Potassium'})</span></p></div>"
  },
  "identifier": [
    {
      "system": "http://acme.org/indentifiers/substances",
      "value": "1234"
    }
  ],
  "category": [
    {
      "coding": [
        {
          "system": "http://hl7.org.fhir/substance-category",
          "code": "chemical",
          "display": "Chemical"
        }
      ]
    }
  ],
  "code": {
    "coding": [
      {
        "system": "http://snomed.info/sct",
        "code": "88480006",
        "display": "Potassium"
      }
    ]
  }
}