MS-DRG 266 — Endovascular Cardiac Valve Replacement and Supplement Procedures with MCC
MDC 05 · Circulatory System · Surgical DRG · FY2026
| FY2026 relative weight | 6.1284 |
|---|---|
| Geometric mean LOS | 2.5 days |
| Arithmetic mean LOS | 4.5 days |
| Severity tier | with MCC |
| Post-acute transfer policy | Yes — per-diem reduction applies to qualifying transfers |
| Special payment provision | Yes |
Severity family — documentation moves the weight 1.29×
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 |
|---|---|---|---|
| 266 | Endovascular Cardiac Valve Replacement and Supplement Procedures with MCC | 6.1284 | 2.5 |
| 267 | Endovascular Cardiac Valve Replacement and Supplement Procedures without MCC | 4.7608 | 1.3 |
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.