<status value="draft" /> <description value="Observation profile intended for use as DiagnosticReport.result. Supports laboratory and imaging result observations." /> <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.status"> <path value="Observation.status" /> <comment value="MERT requires Observation.status. All FHIR ObservationStatus codes are permitted." /> <mustSupport value="true" /> <binding> <strength value="required" /> <valueSet value="http://hl7.org/fhir/ValueSet/observation-status" /> </binding> </element> <element id="Observation.category"> <path value="Observation.category" /> <comment value="MERT allows only 'laboratory' and 'imaging' categories for DiagnosticReport.result observations." /> <min value="1" /> <max value="1" /> <mustSupport value="true" /> <binding> <strength value="required" /> <valueSet value="https://intrahealth.com/fhir/mert/ValueSet/mert-observation-diagnostic-category-vs" /> </binding> </element> <element id="Observation.code"> <path value="Observation.code" /> <comment value="Provide a standard code (e.g., LOINC) when possible. If only an internal/local code exists, transmit that code." /> <mustSupport value="true" /> </element> <element id="Observation.subject"> <path value="Observation.subject" /> <min value="1" /> <type> <code value="Reference" /> <targetProfile value="https://intrahealth.com/fhir/mert/StructureDefinition/PatientMERT" /> </type> <mustSupport value="true" /> </element> <element id="Observation.encounter"> <path value="Observation.encounter" /> <mustSupport value="true" /> </element> <element id="Observation.effective[x]"> <path value="Observation.effective[x]" /> <mustSupport value="true" /> </element> <element id="Observation.value[x]"> <path value="Observation.value[x]" /> <comment value="A result value SHALL be present. Use the most appropriate value[x] type available." /> <min value="1" /> <mustSupport value="true" /> </element> <element id="Observation.interpretation"> <path value="Observation.interpretation" /> <mustSupport value="true" /> </element> <element id="Observation.note"> <path value="Observation.note" /> <mustSupport value="true" /> </element> <element id="Observation.referenceRange"> <path value="Observation.referenceRange" /> <constraint> <key value="mert-ref-range-has-low-high-or-text" /> <severity value="error" /> <human value="referenceRange must have at least one of low, high, or text." /> <expression value="low.exists() or high.exists() or text.exists()" /> <source value="https://intrahealth.com/fhir/mert/StructureDefinition/ObservationDiagnosticResultMERT" /> </constraint> <mustSupport value="true" /> </element> <element id="Observation.referenceRange.low"> <path value="Observation.referenceRange.low" /> <mustSupport value="true" /> </element> <element id="Observation.referenceRange.high"> <path value="Observation.referenceRange.high" /> <mustSupport value="true" /> </element> <element id="Observation.referenceRange.text"> <path value="Observation.referenceRange.text" /> <mustSupport value="true" /> </element> </differential> </StructureDefinition>