<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="BloodGlucoseMeasurement" />
  <url value="https://mydosecoach.com/fhir/StructureDefinition/BloodGlucoseMeasurement" />
  <version value="0.0.1" />
  <name value="BloodGlucoseMeasurement" />
  <status value="active" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation.identifier">
      <path value="Observation.identifier" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.code">
      <path value="Observation.code" />
      <patternCodeableConcept>
        <coding>
          <system value="http://loinc.org" />
          <code value="41653-7" />
          <display value="Glucose [Mass/volume] in Capillary blood by Glucometer" />
        </coding>
      </patternCodeableConcept>
      <mustSupport value="true" />
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.device">
      <path value="Observation.device" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.effectiveDateTime">
      <path value="Observation.effectiveDateTime" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="dateTime" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.valueQuantity">
      <path value="Observation.valueQuantity" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Quantity" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.valueQuantity.code">
      <path value="Observation.valueQuantity.code" />
      <patternCode value="mg/dL" />
    </element>
    <element id="Observation.interpretation">
      <path value="Observation.interpretation" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.interpretation.coding.code">
      <path value="Observation.interpretation.coding.code" />
      <binding>
        <strength value="required" />
        <valueSet value="https://mydosecoach.com/fhir/ValueSet/BloodGlucoseUnit" />
      </binding>
    </element>
  </differential>
</StructureDefinition>