<status value="active" /> <date value="2024-01-01" /> <description value="Defines the ID Core constraints and extensions on the OperationOutcome resource for the minimal set of data to query and retrieve information about the outcome of an attempted system operation." /> <fhirVersion value="4.0.1" /> <kind value="resource" /> <abstract value="false" /> <type value="OperationOutcome" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/OperationOutcome" /> <derivation value="constraint" /> <differential> <element id="OperationOutcome.issue"> <path value="OperationOutcome.issue" /> <max value="1" /> </element> <element id="OperationOutcome.issue.location"> <path value="OperationOutcome.issue.location" /> <max value="1" /> </element> <element id="OperationOutcome.issue.expression"> <path value="OperationOutcome.issue.expression" /> <max value="1" /> </element> </differential> </StructureDefinition>