2026 MIPS Measure #445: Risk-Adjusted Operative Mortality for Coronary Artery Bypass Graft (CABG)

Percent of patients aged 18 years and older undergoing isolated CABG who die, including both all deaths occurring during the hospitalization in which the CABG was performed, even if after 30 days, and those deaths occurring after discharge from the hospital, but within 30 days of the procedure.

This measure is to be submitted a minimum of once per performance period for patients undergoing isolated CABG during the performance period. This measure may be submitted by Merit-based Incentive Payment System (MIPS) eligible clinicians who perform the quality actions described in the measure based on the services provided and the measure-specific denominator coding.

All patients undergoing isolated CABG

Patients aged ? 18 years on date of encounter

AND

Patient procedure during the performance period (CPT): 33509, 33510, 33511, 33512, 33513, 33514, 33516, 33533, 33534, 33535, 33536

OR

Patient procedure during the performance period (CPT): 33509, 33510, 33511, 33512, 33513, 33514, 33516, 33533, 33534, 33535, 33536

AND

Patient procedure during the performance period (CPT): 33530

Number of patients undergoing isolated CABG who die, including both all deaths occurring during the hospitalization in which the operation was performed, even if after 30 days, and those deaths occurring after discharge from the hospital, but within 30 days of the procedure

Numerator Instructions:
Number of patients undergoing isolated CABG who die, including both all deaths occurring during the hospitalization in which the operation was performed, even if after 30 days, and those deaths occurring after discharge from the hospital, but within 30 days of the procedure.

Performance Met: Patient died including all deaths occurring during the hospitalization in which the operation was performed, even if after 30 days, and those deaths occurring after discharge from the hospital, but within 30 days of the procedure (G9812)

OR

Performance Not Met: Patient did not die within 30 days of the procedure or during the index hospitalization (G9813)

Quality measurement and outcome analysis of this common cardiac procedure will drive process improvement for providers and assist patients with decision-making related to treatment of coronary disease.

Mortality is likely the single most important negative outcome that can be associated with a surgical procedure. Coronary artery bypass grafting is the most common cardiac surgery performed in the US.