Message definition base example
 <status value="draft"/> <experimental value="true"/> <date value="2016-11-09"/> <publisher value="HL7 International / Infrastructure And Messaging"/> <contact> <telecom> <system value="url"/> <value value="http://www.hl7.org/Special/committees/inm"/> </telecom> </contact> <description value="Message definition base example"/> <purpose value="Defines a base example for other MessageDefinition instances."/> <eventCoding> <system value="http://example.org/fhir/message-events"/> <code value="admin-notify"/> </eventCoding> <category value="notification"/> </MessageDefinition>