MS-DRG 659 — Kidney and Ureter Procedures for Non-neoplasm with MCC
MDC 11 · Kidney & Urinary Tract · Surgical DRG · FY2026
| FY2026 relative weight | 2.5409 |
|---|---|
| Geometric mean LOS | 5.7 days |
| Arithmetic mean LOS | 7.7 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 2.45×
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 |
|---|---|---|---|
| 659 | Kidney and Ureter Procedures for Non-neoplasm with MCC | 2.5409 | 5.7 |
| 660 | Kidney and Ureter Procedures for Non-neoplasm with CC | 1.3217 | 2.8 |
| 661 | Kidney and Ureter Procedures for Non-neoplasm without CC/MCC | 1.0354 | 1.8 |
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.