Base StructureDefinition for Communication Resource

Communication
identifier
Unique identifier
definition
Instantiates protocol or definition
basedOn
Request fulfilled by this communication
partOf
Part of this action
status
preparation | in-progress | suspended | aborted | completed | entered-in-error
notDone
Communication did not occur
notDoneReason
Why communication did not occur
category
Message category
medium
A channel of communication
subject
Focus of message
recipient
Message recipient
topic
Focal resources
context
Encounter or episode leading to message
sent
When sent
received
When received
sender
Message sender
reasonCode
Indication for message
reasonReference
Why was communication done?
payload
Message payload
content[x]
Message part content
note
Comments made about the communication