Back to top
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.


Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

["Communication, Performed": "Macular edema absent (situation)"]

Performance/Reporting Period
Direct Reference Code

Constrained to 'Macular edema absent (situation)' SNOMEDCT code

QDM Datatype and Definition (QDM Version 5.4)

"Communication, Performed"

To meet criteria using this datatype, the communication indicated by the Communication QDM category is a conveyance of information from one entity (e.g., person, organization, or device) to another.

The Communication, Performed code represents the reason for the communication (i.e., the subject). The category attribute allows reference to the type, or category, of communication (e.g., notification, request, etc.). In many cases, the eCQM developer may not know the local workflow to address the type of communication; hence, it is listed as an attribute to be used as feasibility allows.


  • sent dateTime – when the communication was sent
  • received dateTime – when the communication was received

Note: Negation Rationale indicates a one-time documentation of a reason an activity is not performed. Negation of QDM datatype-related actions for a reason always use the author dateTime attribute to reference timing and must not use Relevant Period.

Last Updated: Jul 08, 2021