MS-DRG 863 — Postoperative and Post-traumatic Infections without MCC
MDC 18 · Infectious & Parasitic Diseases · Medical DRG · FY2026
| FY2026 relative weight | 0.9979 |
|---|---|
| Geometric mean LOS | 3.3 days |
| Arithmetic mean LOS | 4.1 days |
| Severity tier | without MCC |
| Post-acute transfer policy | Yes — per-diem reduction applies to qualifying transfers |
| Special payment provision | No |
Severity family — documentation moves the weight 1.83×
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 |
|---|---|---|---|
| 862 | Postoperative and Post-traumatic Infections with MCC | 1.8237 | 5.0 |
| 863 | Postoperative and Post-traumatic Infections without MCC | 0.9979 | 3.3 |
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.