DRG 233
Surgical DRGCoronary Bypass with Cardiac Catheterization or Open Ablation with MCC
TypeSurgicalMDC05
What is MS-DRG 233?
MS-DRG 233 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 05 (MDC 05) with a Major Complication or Comorbidity (MCC). For FY 2026 it carries a relative weight of 7.6452 with a geometric mean length of stay of 11 days and an arithmetic mean of 12.3 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
Classification
Surgical DRG
Procedure-driven grouping
Linked Codes
0 diagnosis
FY 2026 Payment Data
Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).
Relative Weight
7.6452
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
11 days
Used for transfer payment calculations
Arithmetic Mean LOS
12.3 days
Average length of stay
Post-Acute Transfer
Yes
Subject to the post-acute care transfer policy
Related MS-DRGs in This Severity Group
The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.
| DRG | Title | Rel. Weight | GMLOS |
|---|---|---|---|
| 233 | Coronary Bypass with Cardiac Catheterization or Open Ablation with MCCThis page | 7.6452 | 11 days |
| 234 | Coronary Bypass with Cardiac Catheterization or Open Ablation without MCC | 5.4627 | 8.2 days |