<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="Medication" />
  <url value="http://ontariohealth.ca/fhir/ehr/StructureDefinition/profile-medication" />
  <version value="1.0.0" />
  <name value="MedicationEHR" />
  <title value="Medication EHR" />
  <status value="active" />
  <description value="This resource is primarily used for the identification and definition of a medication for the purposes of prescribing, dispensing, and administering a medication as well as for making statements about medication use." />
  <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" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <ordered value="false" />
        <rules value="open" />
      </slicing>
      <mustSupport value="true" />
    </element>
    <element id="Medication.extension:monitoredDrugIndicator">
      <path value="Medication.extension" />
      <sliceName value="MonitoredDrugIndicator" />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://ehealthontario.ca/fhir/StructureDefinition/ca-on-medications-ext-monitored-drug-indicator" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Medication.extension:compoundIndicator">
      <path value="Medication.extension" />
      <sliceName value="CompoundIndicator" />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://ehealthontario.ca/fhir/StructureDefinition/ca-on-medications-ext-compound-indicator" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Medication.extension:strength">
      <path value="Medication.extension" />
      <sliceName value="strength" />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://prescribeit.ca/fhir/StructureDefinition/ext-medication-strength-description" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Medication.code">
      <path value="Medication.code" />
      <comment value="Generic medications will have a fixed value of https://ehealthontario.ca/fhir/NamingSystem/ca-drug-gen-name on coding.system" />
      <min value="1" />
      <type>
        <code value="CodeableConcept" />
        <profile value="http://ontariohealth.ca/fhir/ehr/StructureDefinition/CodeableConcept-oh-ehr" />
      </type>
      <mustSupport value="true" />
      <binding>
        <extension url="http://hl7.org/fhir/tools/StructureDefinition/additional-binding">
          <extension url="purpose">
            <valueCode value="candidate" />
          </extension>
          <extension url="valueSet">
            <valueCanonical value="https://fhir.infoway-inforoute.ca/ValueSet/DIN" />
          </extension>
          <extension url="documentation">
            <valueMarkdown value="A Drug Identification Number (DIN) is a computer-generated eight digit number assigned by Health Canada to a drug product prior to being marketed in Canada." />
          </extension>
          <extension url="key">
            <valueId value="medCodeDIN" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/tools/StructureDefinition/additional-binding">
          <extension url="purpose">
            <valueCode value="candidate" />
          </extension>
          <extension url="valueSet">
            <valueCanonical value="https://fhir.infoway-inforoute.ca/ValueSet/LicensedNaturalHealthProducts" />
          </extension>
          <extension url="documentation">
            <valueMarkdown value="All Natural Product Number (NPN) and Homeopathic Medicine Number (DIN-HM) codes that are licensed by Health Canada and present in the Licensed Natural Health Products Database." />
          </extension>
          <extension url="key">
            <valueId value="medCodeLNHP" />
          </extension>
        </extension>
        <strength value="preferred" />
        <valueSet value="https://fhir.infoway-inforoute.ca/ValueSet/prescriptionmedicinalproduct" />
      </binding>
    </element>
    <element id="Medication.form">
      <path value="Medication.form" />
      <type>
        <code value="CodeableConcept" />
        <profile value="http://ontariohealth.ca/fhir/ehr/StructureDefinition/CodeableConcept-oh-ehr" />
      </type>
      <mustSupport value="true" />
      <binding>
        <extension url="http://hl7.org/fhir/tools/StructureDefinition/additional-binding">
          <extension url="purpose">
            <valueCode value="candidate" />
          </extension>
          <extension url="valueSet">
            <valueCanonical value="https://fhir.infoway-inforoute.ca/ValueSet/prescriptiondrugform" />
          </extension>
          <extension url="documentation">
            <valueMarkdown value="ValueSet for the prescription's drug form" />
          </extension>
          <extension url="key">
            <valueId value="medFormPres" />
          </extension>
        </extension>
        <strength value="preferred" />
        <valueSet value="https://fhir.infoway-inforoute.ca/ValueSet/pharmaceuticaldoseformcode" />
      </binding>
    </element>
    <element id="Medication.ingredient">
      <path value="Medication.ingredient" />
      <mustSupport value="true" />
    </element>
    <element id="Medication.ingredient.item[x]">
      <path value="Medication.ingredient.item[x]" />
      <comment value="Generic medications will have a fixed value of https://ehealthontario.ca/fhir/NamingSystem/ca-drug-gen-name on coding.system" />
      <type>
        <code value="CodeableConcept" />
        <profile value="http://ontariohealth.ca/fhir/ehr/StructureDefinition/CodeableConcept-oh-ehr" />
      </type>
      <mustSupport value="true" />
      <binding>
        <extension url="http://hl7.org/fhir/tools/StructureDefinition/additional-binding">
          <extension url="purpose">
            <valueCode value="candidate" />
          </extension>
          <extension url="valueSet">
            <valueCanonical value="https://fhir.infoway-inforoute.ca/ValueSet/LicensedNaturalHealthProducts" />
          </extension>
          <extension url="documentation">
            <valueMarkdown value="All Natural Product Number (NPN) and Homeopathic Medicine Number (DIN-HM) codes that are licensed by Health Canada and present in the Licensed Natural Health Products Database." />
          </extension>
          <extension url="key">
            <valueId value="ingredientLNHP" />
          </extension>
        </extension>
        <extension url="http://hl7.org/fhir/tools/StructureDefinition/additional-binding">
          <extension url="purpose">
            <valueCode value="candidate" />
          </extension>
          <extension url="valueSet">
            <valueCanonical value="https://fhir.infoway-inforoute.ca/ValueSet/DIN" />
          </extension>
          <extension url="documentation">
            <valueMarkdown value="A Drug Identification Number (DIN) is a computer-generated eight digit number assigned by Health Canada to a drug product prior to being marketed in Canada." />
          </extension>
          <extension url="key">
            <valueId value="ingredientDIN" />
          </extension>
        </extension>
        <strength value="preferred" />
        <valueSet value="https://fhir.infoway-inforoute.ca/ValueSet/prescriptionmedicinalproduct" />
      </binding>
    </element>
  </differential>
</StructureDefinition>