All ICD10 Codes
MS-DRG 488Surgical

Knee Procedures without Principal Diagnosis of Infection with CC/MCC

Major Diagnostic Category 08·Grouped by procedure·FY 2027

MS-DRG 488 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 08 (MDC 08) with a Complication or Comorbidity (CC). For FY 2027 it carries a relative weight of 2.2211 with a geometric mean length of stay of 4.6 days and an arithmetic mean of 6.1 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:
2.2211 (payment multiplier vs. the average case (1.0))
Geometric mean stay:
4.6 days (used for transfer payments)
Average stay:
6.1 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
488Knee Procedures without Principal Diagnosis of Infection with CC/MCC (this page)2.22114.6 days
489Knee Procedures without Principal Diagnosis of Infection without CC/MCC1.31222 days

Procedure codes (270)

ICD-10-PCS procedures that can group a stay to DRG 488.