Compounded Preparation - HC 1%, Salicylic Acid 5% in Glaxal Base - includes a reference to a substance in the ingredient element

{
  "resourceType": "Medication",
  "id": "med0319",
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative with Details</b></p><p><b>id</b>: med0319</p><p><b>isBrand</b>: false</p><p><b>form</b>: Ointment <span>(Details : {SNOMED CT code '385101003' = 'Ointment', given as 'Ointment'})</span></p><blockquote><p><b>ingredient</b></p><p><b>item</b>: Salicyclic Acid (substance) <span>(Details : {SNOMED CT code '387253001' = 'Salicylic acid', given as 'Salicyclic Acid (substance)'})</span></p><p><b>amount</b>: 5 g<span> (Details: UCUM code g = 'g')</span>/100 g<span> (Details: UCUM code g = 'g')</span></p></blockquote><blockquote><p><b>ingredient</b></p><p><b>item</b>: Hydrocortisone (substance) <span>(Details : {SNOMED CT code '396458002' = 'Hydrocortisone', given as 'Hydrocortisone (substance)'})</span></p><p><b>amount</b>: 1 g<span> (Details: UCUM code g = 'g')</span>/100 g<span> (Details: UCUM code g = 'g')</span></p></blockquote><blockquote><p><b>ingredient</b></p><p><b>item</b>: White Petrolatum (substance) <span>(Details : {SNOMED CT code '126066007' = 'White petroleum', given as 'White Petrolatum (substance)'})</span></p><p><b>amount</b>: 94 g<span> (Details: UCUM code g = 'g')</span>/100 g<span> (Details: UCUM code g = 'g')</span></p></blockquote></div>"

  "resourceType" : "Medication",
  "id" : "med0319",
  "doseForm" : {
    "coding" : [{
      "system" : "http://snomed.info/sct",
      "code" : "385101003",
      "display" : "Ointment"
    }],
    "text" : "Ointment"

  },
  "isBrand": false,
  "form": {
    "coding": [
      {
        "system": "http://snomed.info/sct",
        "code": "385101003",
        "display": "Ointment"

  "ingredient" : [{
    "item" : {
      "concept" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "387253001",
          "display" : "Salicylic Acid (substance)"
        }]

      }
    ],
    "text": "Ointment"
  },
  "ingredient": [
    {
      "itemCodeableConcept": {
        "coding": [
          {
            "system": "http://snomed.info/sct",
            "code": "387253001",
            "display": "Salicyclic Acid (substance)"
          }
        ]

    },
    "strengthRatio" : {
      "numerator" : {
        "value" : 5,
        "system" : "http://unitsofmeasure.org",
        "code" : "g"

      },
      "amount": {
        "numerator": {
          "value": 5,
          "system": "http://unitsofmeasure.org",
          "code": "g"
        },
        "denominator": {
          "value": 100,
          "system": "http://unitsofmeasure.org",
          "code": "g"
        }

      "denominator" : {
        "value" : 100,
        "system" : "http://unitsofmeasure.org",
        "code" : "g"
      }
    }
  },
  {
    "item" : {
      "concept" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "396458002",
          "display" : "Hydrocortisone (substance)"
        }]

      }
    },
    {
      "itemCodeableConcept": {
        "coding": [
          {
            "system": "http://snomed.info/sct",
            "code": "396458002",
            "display": "Hydrocortisone (substance)"
          }
        ]

    "strengthRatio" : {
      "numerator" : {
        "value" : 1,
        "system" : "http://unitsofmeasure.org",
        "code" : "g"

      },
      "amount": {
        "numerator": {
          "value": 1,
          "system": "http://unitsofmeasure.org",
          "code": "g"
        },
        "denominator": {
          "value": 100,
          "system": "http://unitsofmeasure.org",
          "code": "g"
        }

      "denominator" : {
        "value" : 100,
        "system" : "http://unitsofmeasure.org",
        "code" : "g"
      }
    }
  },
  {
    "item" : {
      "concept" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "126066007",
          "display" : "White petroleum (substance)"
        }]

      }
    },
    {
      "itemCodeableConcept": {
        "coding": [
          {
            "system": "http://snomed.info/sct",
            "code": "126066007",
            "display": "White Petrolatum (substance)"
          }
        ]

    "strengthRatio" : {
      "numerator" : {
        "value" : 94,
        "system" : "http://unitsofmeasure.org",
        "code" : "g"

      },
      "amount": {
        "numerator": {
          "value": 94,
          "system": "http://unitsofmeasure.org",
          "code": "g"
        },
        "denominator": {
          "value": 100,
          "system": "http://unitsofmeasure.org",
          "code": "g"
        }

      "denominator" : {
        "value" : 100,
        "system" : "http://unitsofmeasure.org",
        "code" : "g"

      }
    }
  ]

  }]

}