MS-DRG 090 groups Medicare inpatient hospital stays for: CONCUSSION WITHOUT CC/MCC. This is a medical MS-DRG. It falls under MDC 01 (Diseases and Disorders of the Nervous System).
Official CMS values from the current fiscal year's IPPS Final Rule.
| Major Diagnostic Category | MDC 01 — Diseases and Disorders of the Nervous System |
| DRG Type | Medical |
| Severity Level | None |
| Relative Weight | 0.8232 |
| Relative Weight (10% Cap Applied) | 0.8232 |
| Geometric Mean Length of Stay | 1.9 days |
| Arithmetic Mean Length of Stay | 2.3 days |
| Post-Acute Transfer DRG | No |
| Special Pay Transfer DRG | No |