MS-DRG 584 — Breast Biopsy, Local Excision and Other Breast Procedures with CC/MCC
MDC 09 · Skin, Subcutaneous Tissue & Breast · Surgical DRG · FY2026
| FY2026 relative weight | 2.1407 |
|---|---|
| Geometric mean LOS | 3.3 days |
| Arithmetic mean LOS | 4.4 days |
| Severity tier | with CC/MCC |
| Post-acute transfer policy | No |
| Special payment provision | No |
Severity family — documentation moves the weight 1.11×
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 |
|---|---|---|---|
| 584 | Breast Biopsy, Local Excision and Other Breast Procedures with CC/MCC | 2.1407 | 3.3 |
| 585 | Breast Biopsy, Local Excision and Other Breast Procedures without CC/MCC | 1.9291 | 2.0 |
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.