MS-DRG 091 — Other Disorders of Nervous System with MCC
MDC 01 · Nervous System · Medical DRG · FY2026
| FY2026 relative weight | 1.7562 |
|---|---|
| Geometric mean LOS | 4.4 days |
| Arithmetic mean LOS | 6.3 days |
| Severity tier | with MCC |
| Post-acute transfer policy | Yes — per-diem reduction applies to qualifying transfers |
| Special payment provision | No |
Severity family — documentation moves the weight 2.21×
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 |
|---|---|---|---|
| 091 | Other Disorders of Nervous System with MCC | 1.7562 | 4.4 |
| 092 | Other Disorders of Nervous System with CC | 1.0230 | 3.0 |
| 093 | Other Disorders of Nervous System without CC/MCC | 0.7963 | 2.2 |
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.