MS-DRG 308 — Cardiac Arrhythmia and Conduction Disorders with MCC
MDC 05 · Circulatory System · Medical DRG · FY2026
| FY2026 relative weight | 1.2040 |
|---|---|
| Geometric mean LOS | 3.4 days |
| Arithmetic mean LOS | 4.5 days |
| Severity tier | with MCC |
| Post-acute transfer policy | No |
| Special payment provision | No |
Severity family — documentation moves the weight 2.13×
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 |
|---|---|---|---|
| 308 | Cardiac Arrhythmia and Conduction Disorders with MCC | 1.2040 | 3.4 |
| 309 | Cardiac Arrhythmia and Conduction Disorders with CC | 0.7357 | 2.3 |
| 310 | Cardiac Arrhythmia and Conduction Disorders without CC/MCC | 0.5661 | 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.