<status value="draft"/><experimental value="true"/><publisher value="HL7 International / Clinical Decision Support"/><contact><telecom><system value="url"/><value value="http://www.hl7.org/Special/committees/dss"/></telecom></contact><description value="Example of an EventDefinition for monitoring emergency department admissions."/><purpose value="Monitor all admissions to Emergency"/><trigger><type value="data-changed"/><name value="monitor-emergency-admissions"/><data><type value="Encounter"/></data><condition><description value="Encounter Location = emergency (active/completed encounters, current or previous)"/><language value="text/fhirpath"/><expression value="(%current | %previous).location.where(location = 'Location/emergency' and status in {'active', 'completed'}).exists()"/></condition></trigger></EventDefinition>