<status value="active"/><publisher value="HL7 International / FHIR Infrastructure"/><contact><telecom><system value="url"/><value value="http://www.hl7.org/Special/committees/fiwg"/></telecom></contact><description value="Example admission topic using a Parameters representation"/><trigger><description value="Patient admission or visit begins."/><resource value="Parameters"/><supportedInteraction value="create"/><supportedInteraction value="update"/><event><coding><system value="http://terminology.hl7.org/CodeSystem/v2-0003"/><code value="A01"/><display value="ADT/ACK - Admit/visit notification"/></coding></event><canFilterBy><description value="Matching based on the Patient MRN, expected to be in a `part` named `mrn` and contain a `string` value, matched using `token` search rules."/><resource value="Parameters"/><filterParameter value="MRN"/></canFilterBy><notificationShape><resource value="Parameters"/></notificationShape></trigger></SubscriptionTopic>