Measure ID: MIPS 164|Cardiac Surgery|2026 Performance Year

Coronary Artery Bypass Graft (CABG): Prolonged Intubation

Percentage of patients aged 18 years and older undergoing isolated coronary artery bypass graft (CABG) surgery who require postoperative intubation > 24 hours.

Outcome – High PriorityCardiac SurgeryPatient Safety

Last updated: January 15, 2026

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Measure Specification

Denominator (Eligible Population)

Patients aged ≥ 18 years on date of surgery
ANDPatient procedure during the performance period
ORPatient procedure during the performance period
ANDPatient procedure during the performance period
ORPerformance Met: Prolonged postoperative intubation (> 24 hrs.) required (G8569)

Denominator Exclusions

None

Numerator

Patients undergoing isolated CABG who require postoperative intubation > 24 hours.

Submission Codes (QDCs)

✓ Performance Met
G8569Prolonged postoperative intubation (> 24 hrs.) required
✗ Performance Not Met
G8570Prolonged postoperative intubation (> 24 hrs.) not required

Denominator Exceptions

None — this measure has no denominator exceptions.

🧮MIPS Score Simulator

Estimate only — actual CMS scoring may vary based on reporting method, data completeness, and annual rule updates.

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VBCA Insights

💡Why This Measure Matters

Patients who need prolonged breathing support after bypass surgery (over 24 hours) face longer ICU stays, higher costs, and worse long-term outcomes. This outcome measure tracks how often your bypass patients avoid this complication. Better performance comes from optimizing anesthesia, surgical technique, and post-operative management to get patients off the ventilator faster. Collaborative protocols between surgery and ICU teams can meaningfully reduce ventilator time.

📖Clinical Rationale

Based on the STS coronary artery bypass graft (CABG) study population, the morbidity rate associated with prolonged intubation following CABG is 5.96%. Also, prolonged ventilation (defined as > 24 hours) was an independent predictor for readmission to the ICU following CABG surgery (OR=10.53; CI: 6.18 to 17.91). Shorter ventilation times are linked to high quality of care (i.

e., reduced in-hospital and operative mortality, as well as better long-term outcomes as compared to prolonged ventilation).

📝Clinical Recommendations

Extubation greater than (>) 24 hours postoperatively is considered a “pulmonary complication”. Patients who were extubated more than 24 hours after surgery had a longer duration of hospital stay and a greater incidence of postoperative complications.

📋Implementation Notes

This measure contains one strata defined by a single submission criteria. This measure produces a single performance rate. For the purposes of MIPS implementation, this procedure measure is submitted each time a procedure is performed during the performance period. This is an inverse measure which means a lower calculated performance rate for this measure indicates better clinical care or control.

The “Performance Not Met” numerator option for this measure is the representation of the better clinical quality or control. Submitting that numerator option will produce a performance rate that trends closer to 0%, as quality increases. For inverse measures, a rate of 100% means all of the denominator eligible patients did not receive the appropriate care or were not in proper control.

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© This measure is owned by The Society of Thoracic Surgeons (STS) Copyright 2025.