<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://ehealth.bc.ca/fhir/StructureDefinition/ca-bc-eforms-profile-observationLabResults" />
  <name value="ObservationLabResults" />
  <status value="draft" />
  <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.meta">
      <path value="Observation.meta" />
    </element>
    <element id="Observation.meta.profile">
      <path value="Observation.meta.profile" />
      <comment value="Apply &quot;http://ehealth.bc.ca/fhir/StructureDefinition/ca-bc-eforms-profile-observationLabResults&quot;" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Observation.category">
      <path value="Observation.category" />
      <min value="1" />
    </element>
    <element id="Observation.category.coding.system">
      <path value="Observation.category.coding.system" />
      <code>
        <system value="http://terminology.hl7.org/CodeSystem/observation-category" />
      </code>
      <min value="1" />
    </element>
    <element id="Observation.category.coding.code">
      <path value="Observation.category.coding.code" />
      <code>
        <code value="laboratory" />
      </code>
      <min value="1" />
    </element>
    <element id="Observation.code.coding.system">
      <path value="Observation.code.coding.system" />
      <code>
        <system value="http://loinc.org" />
      </code>
      <min value="1" />
    </element>
    <element id="Observation.code.coding.code">
      <path value="Observation.code.coding.code" />
      <min value="1" />
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject" />
      <min value="1" />
    </element>
    <element id="Observation.subject.reference">
      <path value="Observation.subject.reference" />
      <comment value="Reference(Patient|Group|Device|Location)" />
      <min value="1" />
    </element>
    <element id="Observation.performer.reference">
      <path value="Observation.performer.reference" />
      <min value="1" />
    </element>
  </differential>
</StructureDefinition>