The type of message conveyed such as alert, notification, reminder, instruction, etc.

(Example)

Identifiers associated with this Communication that are defined by business processes and/ or used to refer to it when a direct URL reference to the resource itself is not appropriate (e.g. in CDA documents, or in written / printed documentation).

Additional notes or commentary about the communication by the sender, receiver or other interested parties.

Text, attachment(s), or resource(s) that was communicated to the recipient.

Explanation for rejection or failure of the communication. Applicable only if the status is suspended, rejected, or failed.

Binding: value set (Example)

The entity (e.g. person, organization, clinical information system, or device) which was the target of the communication. If receipts need to be tracked by individual, a separate resource instance will need to be created for each recipient.  Multiple recipient communications are intended where either a receipt(s) is not tracked (e.g. a mass mail-out) or is captured in aggregate (all emails confirmed received by a particular time).

The time when this communication was sent.

The patient who was the focus of this communication.