MS-DRG 231 — Coronary Bypass with PTCA with MCC
MDC 05 · Circulatory System · Surgical DRG · FY2026
| FY2026 relative weight | 8.4299 |
|---|---|
| Geometric mean LOS | 10.4 days |
| Arithmetic mean LOS | 12.0 days |
| Severity tier | with MCC |
| Post-acute transfer policy | No |
| Special payment provision | No |
Severity family — documentation moves the weight 1.39×
The same base condition splits by coded severity (CC/MCC). Weight deltas here are exactly what one documented comorbidity is worth:
| DRG | Title | FY2026 weight | GMLOS |
|---|---|---|---|
| 231 | Coronary Bypass with PTCA with MCC | 8.4299 | 10.4 |
| 232 | Coronary Bypass with PTCA without MCC | 6.0626 | 7.5 |
Figures come from the official FY2026 IPPS tables and are payment inputs, not adjudicated amounts. DRG Calculator prices full claims — hospital-specific operating, capital, IME, DSH, uncompensated care and outlier math — and verifies results against the official pricer.