<status value="draft" /> <description value="Captures the ECOG performance status of a patient, which is a measure of their functional status and ability to perform daily activities." /> <fhirVersion value="4.0.1" /> <kind value="resource" /> <abstract value="false" /> <type value="Observation" /> <baseDefinition value="https://www.medizininformatik-initiative.de/fhir/ext/modul-onko/StructureDefinition/mii-pr-onko-allgemeiner-leistungszustand-ecog" /> <derivation value="constraint" /> <differential> <element id="Observation.effective[x]"> <path value="Observation.effective[x]" /> <slicing> <discriminator> <type value="type" /> <path value="$this" /> </discriminator> <ordered value="false" /> <rules value="open" /> </slicing> <min value="1" /> </element> <element id="Observation.effective[x]:effectiveDateTime"> <path value="Observation.effective[x]" /> <sliceName value="effectiveDateTime" /> <min value="1" /> <max value="1" /> <type> <code value="dateTime" /> </type> </element> </differential> </StructureDefinition>