Communication resource is used to achieve the bi-directional communication between two systems. The Communication resource can be used to ask questions regarding a referral, request a referral be updated with missing information, or request additional information not covered by the specific referral dataset.
Project FHIR API
This is the location where you can find your resource using a FHIR client.
Simplifier FHIR API
The global endpoint is where users can search for all resources in Simplifier. Resources have a globally unique guid Id here.