All ICD10 Codes
MS-DRG 585Surgical

Breast Biopsy, Local Excision and Other Breast Procedures without CC/MCC

Major Diagnostic Category 09·Grouped by procedure·FY 2027

MS-DRG 585 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 09 (MDC 09) without a significant Complication or Comorbidity. For FY 2027 it carries a relative weight of 1.8924 with a geometric mean length of stay of 2 days and an arithmetic mean of 2.4 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:
1.8924 (payment multiplier vs. the average case (1.0))
Geometric mean stay:
2 days (used for transfer payments)
Average stay:
2.4 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.

DRGTitleRelative weightMean stay
584Breast Biopsy, Local Excision and Other Breast Procedures with CC/MCC2.02993.3 days
585Breast Biopsy, Local Excision and Other Breast Procedures without CC/MCC (this page)1.89242 days

Procedure codes (337)

ICD-10-PCS procedures that can group a stay to DRG 585.