Menu
DRG Grouper Code Search Blog
MS-DRG

488

Knee Procedures without Principal Diagnosis of Infection with CC/MCC

Relative weight
2.2211
V44.0
In effect · V44.0 MDC 08 Surgical
Severity family
488 489

Same base procedure, split by complication and comorbidity level.

MDC 08 — Diseases and Disorders of the Musculoskeletal System and Connective Tissue

Relative weight by grouper version

CMS publishes classification in the Definitions Manual and weights in Table 5 of the IPPS rule, one spreadsheet per year. These are the 9 versions this grouper supports.

Version Fiscal year Effective Relative weight
V44.0 FY 2027 2026-10-01 2.2211
V43.1 FY 2026 (Apr-Sep) 2026-04-01 1.7689
V43.0 FY 2026 (Oct-Mar) 2025-10-01 1.7689
V42.1 FY 2025 (Apr-Sep) 2025-04-01 1.9654
V42.0 FY 2025 (Oct-Mar) 2024-10-01 1.9654
V41.1 FY 2024 (Apr-Sep) 2024-04-01 2.1066
V41.0 FY 2024 (Oct-Mar) 2023-10-01 2.1066
V40.1 FY 2023 (Apr-Sep) 2023-04-01 2.2692
V40.0 FY 2023 (Oct-Mar) 2022-10-01 2.2692

Range 1.7689 to 2.2692. A dash means the DRG did not exist in that version.

Codes that reach this DRG

270 ICD-10-PCS procedures. Each maps here on its own; procedure clusters can also reach this DRG through combinations, listed separately below.

Procedures

Check a real claim

Relative weight is not payment: actual reimbursement also applies wage index, capital, DSH and IME adjustments, and outliers. Group an encounter to see which DRG it actually lands in.

Open the MS-DRG grouper