<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://example.org/fhir/StructureDefinition/MedicinalProductPharmaceuticalNutritionNutrient" />
  <name value="MedicinalProductPharmaceuticalNutritionNutrient" />
  <status value="draft" />
  <fhirVersion value="4.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="MedicinalProductPharmaceutical" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension.extension:amount">
      <path value="Extension.extension" />
      <sliceName value="amount" />
    </element>
    <element id="Extension.extension:amount.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:amount.url">
      <path value="Extension.extension.url" />
      <fixedUri value="amount" />
    </element>
    <element id="Extension.extension:amount.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="Ratio" />
      </type>
    </element>
    <element id="Extension.extension:substance">
      <path value="Extension.extension" />
      <sliceName value="substance" />
      <max value="1" />
    </element>
    <element id="Extension.extension:substance.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:substance.url">
      <path value="Extension.extension.url" />
      <fixedUri value="substance" />
    </element>
    <element id="Extension.extension:substance.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="Reference" />
        <targetProfile value="https://example.org/fhir/StructureDefinition/2.0.0/SubstanceSpecificationNOMA" />
        <aggregation value="referenced" />
      </type>
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="https://example.org/fhir/StructureDefinition/MedicinalProductPharmaceuticalNutritionNutrient" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>