An occurrence of information being transmitted; e.g. an alert that was sent to a responsible provider, a public health agency that was notified about a reportable condition. An occurrence of information being transmitted; e.g. an alert that was sent to a responsible provider, a public health agency that was notified about a reportable condition. If the element is present, it must have either a @value, an @id, or extensions Business identifiers assigned to this communication by the performer or other systems which remain constant as the resource is updated and propagates from server to server. The URL pointing to a FHIR-defined protocol, guideline, orderset or other definition that is adhered to in whole or in part by this Communication. The URL pointing to an externally maintained protocol, guideline, orderset or other definition that is adhered to in whole or in part by this Communication. An order, proposal or plan fulfilled in whole or in part by this Communication. Part of this action. Prior communication that this communication is in response to. The status of the transmission. Captures the reason for the current state of the Communication. The type of message conveyed such as alert, notification, reminder, instruction, etc. Characterizes how quickly the planned or in progress communication must be addressed. Includes concepts such as stat, urgent, routine. A channel that was used for this communication (e.g. email, fax). The patient or group that was the focus of this communication. Description of the purpose/content, similar to a subject line in an email. Other resources that pertain to this communication and to which this communication should be associated. The Encounter during which this Communication was created or to which the creation of this record is tightly associated. The time when this communication was sent. The time when this communication arrived at the destination. The entity (e.g. person, organization, clinical information system, care team or device) which was the target of the communication. If receipts need to be tracked by an individual, a separate resource instance will need to be created for each recipient. Multiple recipient communications are intended where either receipts are not tracked (e.g. a mass mail-out) or a receipt is captured in aggregate (all emails confirmed received by a particular time). The entity (e.g. person, organization, clinical information system, or device) which was the source of the communication. The reason or justification for the communication. Indicates another resource whose existence justifies this communication. Text, attachment(s), or resource(s) that was communicated to the recipient. Additional notes or commentary about the communication by the sender, receiver or other interested parties. An occurrence of information being transmitted; e.g. an alert that was sent to a responsible provider, a public health agency that was notified about a reportable condition. A communicated content (or for multi-part communications, one portion of the communication). Preparation In Progress Not Done On Hold Stopped Completed Entered in Error Unknown The status of the communication. If the element is present, it must have either a @value, an @id, or extensions