<status value="draft" /> <description value="This profile describes Dosage constraints for MERT medication exchange." /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <type value="Dosage" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Dosage" /> <derivation value="constraint" /> <differential> <element id="Dosage.text"> <path value="Dosage.text" /> <short value="Free text dosage instructions (SIG)." /> <mustSupport value="true" /> </element> <element id="Dosage.timing"> <path value="Dosage.timing" /> <min value="1" /> <mustSupport value="true" /> </element> <element id="Dosage.asNeeded[x]"> <path value="Dosage.asNeeded[x]" /> <comment value="MERT does not support asNeededCodeableConcept; use asNeededBoolean." /> <type> <code value="boolean" /> </type> <mustSupport value="true" /> </element> <element id="Dosage.route"> <path value="Dosage.route" /> <short value="Route of administration (free text preferred in route.text)." /> <comment value="MERT captures route as free text using route.text (CodeableConcept.text) rather than coded route values." /> <mustSupport value="true" /> </element> <element id="Dosage.route.text"> <path value="Dosage.route.text" /> <min value="1" /> <mustSupport value="true" /> </element> <element id="Dosage.doseAndRate"> <path value="Dosage.doseAndRate" /> <mustSupport value="true" /> </element> <element id="Dosage.doseAndRate.dose[x]"> <path value="Dosage.doseAndRate.dose[x]" /> <slicing> <discriminator> <type value="type" /> <path value="$this" /> </discriminator> <ordered value="false" /> <rules value="open" /> </slicing> <mustSupport value="true" /> </element> <element id="Dosage.doseAndRate.dose[x]:doseRange"> <path value="Dosage.doseAndRate.dose[x]" /> <sliceName value="doseRange" /> <min value="0" /> <max value="1" /> <type> <code value="Range" /> </type> <mustSupport value="true" /> </element> <element id="Dosage.doseAndRate.dose[x]:doseQuantity"> <path value="Dosage.doseAndRate.dose[x]" /> <sliceName value="doseQuantity" /> <min value="0" /> <max value="1" /> <type> <code value="Quantity" /> <profile value="http://hl7.org/fhir/StructureDefinition/SimpleQuantity" /> </type> <mustSupport value="true" /> </element> </differential> </StructureDefinition>