MS-DRG 849Medical
Radiotherapy
Major Diagnostic Category 17·Grouped by diagnosis·FY 2027
MS-DRG 849 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 17 (MDC 17). It maps to 1 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 2.5857 with a geometric mean length of stay of 6.5 days and an arithmetic mean of 9 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:
- 2.5857 (payment multiplier vs. the average case (1.0))
- Geometric mean stay:
- 6.5 days (used for transfer payments)
- Average stay:
- 9 days (arithmetic mean)
- Post-acute transfer policy:
- No (not subject to it)
Diagnosis codes (1)
As the principal diagnosis, these ICD-10-CM codes can group to DRG 849. 100% of the codes listed are billable.