MS-DRG 399 groups Medicare inpatient hospital stays for: APPENDIX PROCEDURES WITHOUT CC/MCC. This is a surgical MS-DRG. It falls under MDC 06 (Diseases and Disorders of the Digestive System).
Official CMS values from the current fiscal year's IPPS Final Rule.
| Major Diagnostic Category | MDC 06 — Diseases and Disorders of the Digestive System |
| DRG Type | Surgical |
| Severity Level | None |
| Relative Weight | 1.1447 |
| Relative Weight (10% Cap Applied) | 1.1447 |
| Geometric Mean Length of Stay | 1.8 days |
| Arithmetic Mean Length of Stay | 2.2 days |
| Post-Acute Transfer DRG | No |
| Special Pay Transfer DRG | No |