<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://example.org/fhir/StructureDefinition/PH_Medication" />
  <name value="PH_Medication" />
  <status value="draft" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Medication" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Medication" />
  <derivation value="constraint" />
  <differential>
    <element id="Medication.extension">
      <path value="Medication.extension" />
      <min value="1" />
    </element>
    <element id="Medication.extension:dosageInstruction">
      <path value="Medication.extension" />
      <sliceName value="dosageInstruction" />
      <short value="instruction on the medication dosage" />
      <definition value="instruction on the medication dosage" />
      <comment value="This is an extension" />
      <type>
        <code value="Extension" />
        <profile value="https://example.org/fhir/StructureDefinition/DosageInstruction" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="Medication.extension:packaging">
      <path value="Medication.extension" />
      <sliceName value="packaging" />
      <short value="Detailed description on the medication packaging" />
      <definition value="Detailed description on the medication packaging" />
      <comment value="This is an extension" />
      <min value="1" />
      <type>
        <code value="Extension" />
        <profile value="https://example.org/fhir/StructureDefinition/Packaging" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="Medication.extension:packaging.value[x]">
      <path value="Medication.extension.value[x]" />
    </element>
    <element id="Medication.extension:packaging.value[x].extension:packcode">
      <path value="Medication.extension.value[x].extension" />
      <sliceName value="packcode" />
      <short value="Package Code" />
      <type>
        <code value="Extension" />
        <profile value="http://hl7.org/fhir/StructureDefinition/originalText" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="Medication.extension:packaging.value[x].extension:packdesc">
      <path value="Medication.extension.value[x].extension" />
      <sliceName value="packdesc" />
      <short value="Package Description" />
      <type>
        <code value="Extension" />
        <profile value="http://hl7.org/fhir/StructureDefinition/originalText" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="Medication.extension:dateUpdated">
      <path value="Medication.extension" />
      <sliceName value="dateUpdated" />
      <short value="Date of last update" />
      <definition value="Date of last update" />
      <comment value="This is an extension" />
      <type>
        <code value="Extension" />
        <profile value="https://example.org/fhir/StructureDefinition/DateUpdated" />
      </type>
      <isModifier value="false" />
    </element>
    <element id="Medication.status">
      <path value="Medication.status" />
      <max value="0" />
    </element>
    <element id="Medication.manufacturer">
      <path value="Medication.manufacturer" />
      <max value="0" />
    </element>
    <element id="Medication.amount">
      <path value="Medication.amount" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>