The 2027 Annual Update draft measure specifications are now available. Question and comment on Eligible Clinician eCQMs, Hospital - Inpatient eCQMs, and Hospital - Outpatient eCQM until December 19, 2025.
A QDM attribute provides specific detail about a QDM datatype.
Note: participationPeriod references the QDM datatype "Participation", representing a patient's coverage by a program such as an insurance or medical plan or a payment agreement. The participationPeriod is not to be confused with the QDM participant attribute used with the "Encounter, Performed" QDM datatype.