MS-DRG 199 — Pneumothorax with MCC
MDC 04 · Respiratory System · Medical DRG · FY2026
| FY2026 relative weight | 1.7641 |
|---|---|
| Geometric mean LOS | 4.8 days |
| Arithmetic mean LOS | 6.3 days |
| Severity tier | with MCC |
| Post-acute transfer policy | No |
| Special payment provision | No |
Severity family — documentation moves the weight 2.47×
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 |
|---|---|---|---|
| 199 | Pneumothorax with MCC | 1.7641 | 4.8 |
| 200 | Pneumothorax with CC | 1.0993 | 3.1 |
| 201 | Pneumothorax without CC/MCC | 0.7151 | 2.3 |
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.