extension shown: fhir [x]

Communication.payload.contentReference

Defined in the fhir.schema.org extension.
Canonical URL: http://schema.org/Communication.payload.contentReference

Thing > Property > Communication.payload.contentReference

A communicated content (or for multi-part communications, one portion of the communication).

Usage: Fewer than 10 domains
Values expected to be one of these types
Resource
Used on these types
Communication

Schema Version 2.2