Concussion without CC/MCC
Major Diagnostic Category 01·Grouped by diagnosis·FY 2027
MS-DRG 090 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 01 (MDC 01) without a significant Complication or Comorbidity. It maps to 4 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 0.8273 with a geometric mean length of stay of 1.8 days and an arithmetic mean of 2.2 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
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FY 2027 payment data
From Table 5 of the FY 2027 IPPS Final Rule (CMS).
- Relative weight:
- 0.8273 (payment multiplier vs. the average case (1.0))
- Geometric mean stay:
- 1.8 days (used for transfer payments)
- Average stay:
- 2.2 days (arithmetic mean)
- Post-acute transfer policy:
- No (not subject to it)
Same condition, other severity levels
CMS splits one condition into separate DRGs by how sick the patient is. With MCC pays more than with CC, which pays more than without CC/MCC.
Diagnosis codes (4)
As the principal diagnosis, these ICD-10-CM codes can group to DRG 090. 100% of the codes listed are billable.
- S06.0X0AConcussion without loss of consciousness, initial encounter
- S06.0X1AConcussion with loss of consciousness of 30 minutes or less, initial encounter
- S06.0X9AConcussion with loss of consciousness of unspecified duration, initial encounter
- S06.0XAAConcussion with loss of consciousness status unknown, initial encounter