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: Medication</b><a name=\"med0319\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource Medication &quot;med0319&quot; </p></div><p><b>doseForm</b>: Ointment <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#385101003)</span></p><blockquote><p><b>ingredient</b></p><h3>Items</h3><table class=\"grid\"><tr><td>-</td><td><b>Concept</b></td></tr><tr><td>*</td><td>Salicylic Acid (substance) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#387253001)</span></td></tr></table><p><b>strength</b>: 5 g<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code g = 'g')</span>/100 g<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code g = 'g')</span></p></blockquote><blockquote><p><b>ingredient</b></p><h3>Items</h3><table class=\"grid\"><tr><td>-</td><td><b>Concept</b></td></tr><tr><td>*</td><td>Hydrocortisone (substance) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#396458002)</span></td></tr></table><p><b>strength</b>: 1 g<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code g = 'g')</span>/100 g<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code g = 'g')</span></p></blockquote><blockquote><p><b>ingredient</b></p><h3>Items</h3><table class=\"grid\"><tr><td>-</td><td><b>Concept</b></td></tr><tr><td>*</td><td>White Petrolatum (substance) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#126066007)</span></td></tr></table><p><b>strength</b>: 94 g<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code g = 'g')</span>/100 g<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code g = 'g')</span></p></blockquote></div>"
  },
  "doseForm" : {
    "coding" : [{
      "system" : "http://snomed.info/sct",
      "code" : "385101003",
      "display" : "Ointment"
    }],
    "text" : "Ointment"
  },
  "ingredient" : [{
    "item" : {
      "concept" : {
        "coding" : [{
          "system" : "http://snomed.info/sct",
          "code" : "387253001",
          "display" : "Salicylic Acid (substance)"
        }]
      }
    },
    "strengthRatio" : {
      "numerator" : {
        "value" : 5,
        "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)"
        }]
      }
    },
    "strengthRatio" : {
      "numerator" : {
        "value" : 1,
        "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 Petrolatum (substance)"
        }]
      }
    },
    "strengthRatio" : {
      "numerator" : {
        "value" : 94,
        "system" : "http://unitsofmeasure.org",
        "code" : "g"
      },
      "denominator" : {
        "value" : 100,
        "system" : "http://unitsofmeasure.org",
        "code" : "g"
      }
    }
  }]
}