<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://apiframework.dedalus.eu/fhir/StructureDefinition/extension-dosage-doseAndRate" />
  <name value="extension-dosage-doseAndRate" />
  <status value="active" />
  <experimental value="false" />
  <description value="This extension mimic the changes between STU3 and R4 in fhir spec on Dosage data type, where the .dose element has been replaced by a .doseAndRate element" />
  <fhirVersion value="3.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <contextType value="datatype" />
  <context value="Dosage" />
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension.extension">
      <path value="Extension.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Extension.extension:type">
      <path value="Extension.extension" />
      <sliceName value="type" />
      <short value="The kind of dose or rate specified" />
      <max value="1" />
    </element>
    <element id="Extension.extension:type.url">
      <path value="Extension.extension.url" />
      <fixedUri value="type" />
    </element>
    <element id="Extension.extension:type.value[x]:valueCodeableConcept">
      <path value="Extension.extension.valueCodeableConcept" />
      <sliceName value="valueCodeableConcept" />
      <type>
        <code value="CodeableConcept" />
      </type>
      <binding>
        <strength value="required" />
        <valueSetUri value="http://apiframework.dedalus.eu/fhir/ValueSet/DoseAndRateType" />
      </binding>
    </element>
    <element id="Extension.extension:dose">
      <path value="Extension.extension" />
      <sliceName value="dose" />
      <short value="Amount of medication per dose" />
      <max value="1" />
    </element>
    <element id="Extension.extension:dose.url">
      <path value="Extension.extension.url" />
      <fixedUri value="dose" />
    </element>
    <element id="Extension.extension:dose.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="Quantity" />
      </type>
      <type>
        <code value="Range" />
      </type>
    </element>
    <element id="Extension.extension:rate">
      <path value="Extension.extension" />
      <sliceName value="rate" />
      <short value="Amount of medication per unit of time" />
      <max value="1" />
    </element>
    <element id="Extension.extension:rate.url">
      <path value="Extension.extension.url" />
      <fixedUri value="rate" />
    </element>
    <element id="Extension.extension:rate.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="Quantity" />
      </type>
      <type>
        <code value="Range" />
      </type>
      <type>
        <code value="Ratio" />
      </type>
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="http://apiframework.dedalus.eu/fhir/StructureDefinition/extension-dosage-doseAndRate" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>