MessageHeader

Foundation

The header for a message exchange that is either requesting or responding to an action. The reference(s) that are the subject of the action as well as other information related to the action are typically transmitted in a bundle in which the MessageHeader resource instance is the first resource in the bundle.

MessageHeader is a FHIR R4 Foundation resource — a resource that describes a message that is exchanged between systems. It defines 41 elements and supports 23 search parameters.

Official spec

Path	Card.	Type	Description & Constraints
MessageHeader	0..*	—	A resource that describes a message that is exchanged between systems
.idΣ	0..1	String	Logical id of this artifact
.metaΣ	0..1	Meta	Metadata about the resource
.implicitRules?!Σ	0..1	uri	A set of rules under which this content was created
.language	0..1	code	Language of the resource content Bindinglanguages(preferred)
.text	0..1	Narrative	Text summary of the resource, for human interpretation
.contained	0..*	Resource	Contained, inline Resources
.extension	0..*	Extension	Additional content defined by implementations
.modifierExtension?!	0..*	Extension	Extensions that cannot be ignored
.event[x]Σ	1..1	Coding \| uri	Code for the event this message represents or link to event definition Bindingmessage-events(example)
.destinationΣ	0..*	BackboneElement	Message destination application(s)
.id	0..1	String	Unique id for inter-element referencing
.extension	0..*	Extension	Additional content defined by implementations
.modifierExtension?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
.nameΣ	0..1	string	Name of system
.targetΣ	0..1	Reference(Device)	Particular delivery destination within the destination
.endpointΣ	1..1	url	Actual destination address or id
.receiverΣ	0..1	Reference(Practitioner \| PractitionerRole \| Organization)	Intended "real-world" recipient for the data
.senderΣ	0..1	Reference(Practitioner \| PractitionerRole \| Organization)	Real world sender of the message
.entererΣ	0..1	Reference(Practitioner \| PractitionerRole)	The source of the data entry
.authorΣ	0..1	Reference(Practitioner \| PractitionerRole)	The source of the decision
.sourceΣ	1..1	BackboneElement	Message source application
.id	0..1	String	Unique id for inter-element referencing
.extension	0..*	Extension	Additional content defined by implementations
.modifierExtension?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
.nameΣ	0..1	string	Name of system
.softwareΣ	0..1	string	Name of software running the system
.versionΣ	0..1	string	Version of software running
.contactΣ	0..1	ContactPoint	Human contact for problems
.endpointΣ	1..1	url	Actual message source address or id
.responsibleΣ	0..1	Reference(Practitioner \| PractitionerRole \| Organization)	Final responsibility for event
.reasonΣ	0..1	CodeableConcept	Cause of event Bindingmessage-reason-encounter(example)
.responseΣ	0..1	BackboneElement	If this is a reply to prior message
.id	0..1	String	Unique id for inter-element referencing
.extension	0..*	Extension	Additional content defined by implementations
.modifierExtension?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
.identifierΣ	1..1	id	Id of original message
.codeΣ	1..1	code	ok \| transient-error \| fatal-error Bindingresponse-code(required)
.detailsΣ	0..1	Reference(OperationOutcome)	Specific list of hints/warnings/errors
.focusΣ	0..*	Reference(Resource)	The actual content of the message
.definitionΣ	0..1	canonical	Link to the definition for this message

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