MS-DRG 659Surgical

Kidney and Ureter Procedures for Non-Neoplasm with MCC

Major Diagnostic Category 11·Grouped by procedure·FY 2027

MS-DRG 659 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 11 (MDC 11) with a Major Complication or Comorbidity (MCC). For FY 2027 it carries a relative weight of 2.4399 with a geometric mean length of stay of 5.4 days and an arithmetic mean of 7.3 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:
2.4399 (payment multiplier vs. the average case (1.0))
Geometric mean stay:
5.4 days (used for transfer payments)
Average stay:
7.3 days (arithmetic mean)
Post-acute transfer policy:
Yes (early transfers can be paid less)

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
659Kidney and Ureter Procedures for Non-Neoplasm with MCC (this page)2.43995.4 days
660Kidney and Ureter Procedures for Non-Neoplasm with CC1.30202.7 days
661Kidney and Ureter Procedures for Non-Neoplasm without CC/MCC1.04411.7 days

Procedure codes (167)

ICD-10-PCS procedures that can group a stay to DRG 659.