MS-DRG 478 — Biopsies of Musculoskeletal System and Connective Tissue with CC
MDC 08 · Musculoskeletal & Connective Tissue · Surgical DRG · FY2026
| FY2026 relative weight | 2.4592 |
|---|---|
| Geometric mean LOS | 5.4 days |
| Arithmetic mean LOS | 6.7 days |
| Severity tier | with CC |
| Post-acute transfer policy | Yes — per-diem reduction applies to qualifying transfers |
| Special payment provision | Yes |
Severity family — documentation moves the weight 1.86×
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 |
|---|---|---|---|
| 477 | Biopsies of Musculoskeletal System and Connective Tissue with MCC | 3.4546 | 8.6 |
| 478 | Biopsies of Musculoskeletal System and Connective Tissue with CC | 2.4592 | 5.4 |
| 479 | Biopsies of Musculoskeletal System and Connective Tissue without CC/MCC | 1.8589 | 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.