MS-DRG 458 — Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions without CC/MCC
MDC 08 · Musculoskeletal & Connective Tissue · Surgical DRG · FY2026
| FY2026 relative weight | 4.1726 |
|---|---|
| Geometric mean LOS | 2.4 days |
| Arithmetic mean LOS | 2.8 days |
| Severity tier | without CC/MCC |
| Post-acute transfer policy | No |
| Special payment provision | No |
Severity family — documentation moves the weight 2.01×
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 |
|---|---|---|---|
| 456 | Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions with MCC | 8.4034 | 9.4 |
| 457 | Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions with CC | 5.9631 | 4.8 |
| 458 | Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, Infection or Extensive Fusions without CC/MCC | 4.1726 | 2.4 |
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.