Name Flags Card. Type Description & Constraints doco
. . MessageHeader TU DomainResource A resource that describes a message that is exchanged between systems

Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension
. . . event[x] Σ 1..1 Event code or link to EventDefinition
Binding: MessageEvent ( Example)
. . . . eventCoding Coding
. . . . eventCanonical canonical( EventDefinition)
. . . destination Σ 0..* BackboneElement Message destination application(s)

. . . . endpoint[x] Σ 0..1 Actual destination address or Endpoint resource
. . . . . endpointUrl url
. . . . . endpointReference Reference( Endpoint)
. . . . name Σ 0..1 string Name of system
. . . . target Σ 0..1 Reference( Device) Particular delivery destination within the destination
. . . . receiver Σ 0..1 Reference( Practitioner | PractitionerRole | Organization) Intended "real-world" recipient for the data
. . . sender Σ 0..1 Reference( Practitioner | PractitionerRole | Device | Organization) Real world sender of the message
. . . author Σ 0..1 Reference( Practitioner | PractitionerRole | Device | Organization) The source of the decision
. . . source Σ 1..1 BackboneElement Message source application
. . . . endpoint[x] Σ 0..1 Actual source address or Endpoint resource
. . . . . endpointUrl url
. . . . . endpointReference Reference( Endpoint)
. . . . name Σ 0..1 string Name of system
. . . . software Σ 0..1 string Name of software running the system
. . . . version Σ 0..1 string Version of software running
. . . . contact Σ 0..1 ContactPoint Human contact for problems
. . . responsible Σ 0..1 Reference( Practitioner | PractitionerRole | Organization) Final responsibility for event
. . . reason Σ 0..1 CodeableConcept Cause of event
Binding: Example Message Reason Codes ( Example)
. . . response Σ 0..1 BackboneElement If this is a reply to prior message
. . . . identifier Σ 1..1 Identifier Bundle.identifier of original message
. . . . code Σ 1..1 code ok | transient-error | fatal-error
Binding: Response Type ( Required)
. . . . details Σ 0..1 Reference( OperationOutcome) Specific list of hints/warnings/errors
. . . focus Σ 0..* Reference( Any) The actual content of the message

. . . definition Σ 0..1 canonical( MessageDefinition) Link to the definition for this message

doco Documentation for this format