<?xml version="1.0" encoding="UTF-8"?><MessageHeader xmlns="http://hl7.org/fhir"><id value="2d7aeaf8-933d-48f1-8e50-530707a3c66e"/><meta><versionId value="1"/><lastUpdated value="2022-02-17T17:34:55.059+08:00"/><tag><system value="http://terminology.hl7.org/CodeSystem/v3-ActReason"/><code value="HTEST"/><display value="test health data"/></tag></meta><eventCoding><system value="http://example.org/fhir/message-events"/><code value="admin-notify"/></eventCoding><destination><name value="Acme Message Gateway"/><target><reference value="Device/example"/></target><endpoint value="llp:10.11.12.14:5432"/><receiver><reference value="http://acme.com/ehr/fhir/Practitioner/2323-33-4"/></receiver></destination><sender><reference value="Organization/1"/></sender><enterer><reference value="Practitioner/example"/></enterer><author><reference value="Practitioner/example"/></author><source><name value="Acme Central Patient Registry"/><software value="FooBar Patient Manager"/><version value="3.1.45.AABB"/><contact><system value="phone"/><value value="+1 (555) 123 4567"/></contact><endpoint value="llp:10.11.12.13:5432"/></source><reason><coding><system value="http://terminology.hl7.org/CodeSystem/message-reasons-encounter"/><code value="admit"/></coding></reason><response><identifier value="5015fe84-8e76-4526-89d8-44b322e8d4fb"/><code value="ok"/></response><focus><reference value="Patient/example"/></focus><definition value="http:////acme.com/ehr/fhir/messagedefinition/patientrequest"/></MessageHeader>