All ICD10 Codes

DRG 489

Surgical DRG

Knee Procedures without Principal Diagnosis of Infection without CC/MCC

TypeSurgicalMDC08

What is MS-DRG 489?

MS-DRG 489 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 08 (MDC 08) without a significant Complication or Comorbidity. For FY 2026 it carries a relative weight of 1.1168 with a geometric mean length of stay of 1.2 days and an arithmetic mean of 1.4 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

Classification
Surgical DRG
Procedure-driven grouping
MDC
Major Diagnostic Category 08
Linked Codes
0 diagnosis
62 procedure

FY 2026 Payment Data

Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).

Relative Weight
1.1168
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
1.2 days
Used for transfer payment calculations
Arithmetic Mean LOS
1.4 days
Average length of stay
Post-Acute Transfer
Yes
Subject to the post-acute care transfer policy

Related MS-DRGs in This Severity Group

The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.

DRGTitleRel. WeightGMLOS
488Knee Procedures without Principal Diagnosis of Infection with CC/MCC1.76892.2 days
489Knee Procedures without Principal Diagnosis of Infection without CC/MCCThis page1.11681.2 days

Linked ICD-10-PCS Procedure Mappings

  • 0M9N0ZZ

    Drainage of Right Knee Bursa and Ligament, Open Approach

    BillableSection 0
  • 0M9P0ZZ

    Drainage of Left Knee Bursa and Ligament, Open Approach

    BillableSection 0
  • 0MQM4ZZ

    Repair Left Hip Bursa and Ligament, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0MRM4KZ

    Replacement of Left Hip Bursa and Ligament with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0Q8C4ZZ

    Division of Left Lower Femur, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0QBD0ZX

    Excision of Right Patella, Open Approach, Diagnostic

    BillableSection 0
  • 0QBD3ZX

    Excision of Right Patella, Percutaneous Approach, Diagnostic

    BillableSection 0
  • 0QBD4ZX

    Excision of Right Patella, Percutaneous Endoscopic Approach, Diagnostic

    BillableSection 0
  • 0QBF0ZX

    Excision of Left Patella, Open Approach, Diagnostic

    BillableSection 0
  • 0QBF3ZX

    Excision of Left Patella, Percutaneous Approach, Diagnostic

    BillableSection 0
  • 0QBF4ZX

    Excision of Left Patella, Percutaneous Endoscopic Approach, Diagnostic

    BillableSection 0
  • 0QCC4ZZ

    Extirpation of Matter from Left Lower Femur, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0QHC4DZ

    Insertion of Hybrid External Fixation Device into Left Lower Femur, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0QNC4ZZ

    Release Left Lower Femur, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0QQC4ZZ

    Repair Left Lower Femur, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0QQD3ZZ

    Repair Right Patella, Percutaneous Approach

    BillableSection 0
  • 0QQF3ZZ

    Repair Left Patella, Percutaneous Approach

    BillableSection 0
  • 0QRC4KZ

    Replacement of Left Lower Femur with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0QSD04Z

    Reposition Right Patella with Internal Fixation Device, Open Approach

    BillableSection 0
  • 0QSD34Z

    Reposition Right Patella with Internal Fixation Device, Percutaneous Approach

    BillableSection 0
  • 0QSD44Z

    Reposition Right Patella with Internal Fixation Device, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0QSF04Z

    Reposition Left Patella with Internal Fixation Device, Open Approach

    BillableSection 0
  • 0QSF34Z

    Reposition Left Patella with Internal Fixation Device, Percutaneous Approach

    BillableSection 0
  • 0QSF44Z

    Reposition Left Patella with Internal Fixation Device, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0QTC0ZZ

    Resection of Left Lower Femur, Open Approach

    BillableSection 0
  • 0QUC4KZ

    Supplement Left Lower Femur with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0S9B0ZZ

    Drainage of Left Hip Joint, Open Approach

    BillableSection 0
  • 0SBB4ZZ

    Excision of Left Hip Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SCB4ZZ

    Extirpation of Matter from Left Hip Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SGB4KZ

    Fusion of Left Hip Joint with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SHB45Z

    Insertion of External Fixation Device into Left Hip Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SJB4ZZ

    Inspection of Left Hip Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SJC4ZZ

    Inspection of Right Knee Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SNB4ZZ

    Release Left Hip Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SPB4KZ

    Removal of Nonautologous Tissue Substitute from Left Hip Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SPC09Z

    Removal of Liner from Right Knee Joint, Open Approach

    BillableSection 0
  • 0SPC0JZ

    Removal of Synthetic Substitute from Right Knee Joint, Open Approach

    BillableSection 0
  • 0SPC0NZ

    Removal of Patellofemoral Synthetic Substitute from Right Knee Joint, Open Approach

    BillableSection 0
  • 0SPC3JZ

    Removal of Synthetic Substitute from Right Knee Joint, Percutaneous Approach

    BillableSection 0
  • 0SPC3NZ

    Removal of Patellofemoral Synthetic Substitute from Right Knee Joint, Percutaneous Approach

    BillableSection 0
  • 0SPC4JZ

    Removal of Synthetic Substitute from Right Knee Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SPC4NZ

    Removal of Patellofemoral Synthetic Substitute from Right Knee Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SPD09Z

    Removal of Liner from Left Knee Joint, Open Approach

    BillableSection 0
  • 0SPD0JZ

    Removal of Synthetic Substitute from Left Knee Joint, Open Approach

    BillableSection 0
  • 0SPD0NZ

    Removal of Patellofemoral Synthetic Substitute from Left Knee Joint, Open Approach

    BillableSection 0
  • 0SPD3JZ

    Removal of Synthetic Substitute from Left Knee Joint, Percutaneous Approach

    BillableSection 0
  • 0SPD3NZ

    Removal of Patellofemoral Synthetic Substitute from Left Knee Joint, Percutaneous Approach

    BillableSection 0
  • 0SPD4JZ

    Removal of Synthetic Substitute from Left Knee Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SQB4ZZ

    Repair Left Hip Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SRC07Z

    Replacement of Right Knee Joint with Autologous Tissue Substitute, Open Approach

    BillableSection 0
  • 0SRD07Z

    Replacement of Left Knee Joint with Autologous Tissue Substitute, Open Approach

    BillableSection 0
  • 0SSB34Z

    Reposition Left Hip Joint with Internal Fixation Device, Percutaneous Approach

    BillableSection 0
  • 0STB0ZZ

    Resection of Left Hip Joint, Open Approach

    BillableSection 0
  • 0SUV09Z

    Supplement Right Knee Joint, Tibial Surface with Liner, Open Approach

    BillableSection 0
  • 0SUW09Z

    Supplement Left Knee Joint, Tibial Surface with Liner, Open Approach

    BillableSection 0
  • 0SWB4KZ

    Revision of Nonautologous Tissue Substitute in Left Hip Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SWC0JZ

    Revision of Synthetic Substitute in Right Knee Joint, Open Approach

    BillableSection 0
  • 0SWC3JZ

    Revision of Synthetic Substitute in Right Knee Joint, Percutaneous Approach

    BillableSection 0
  • 0SWC4JZ

    Revision of Synthetic Substitute in Right Knee Joint, Percutaneous Endoscopic Approach

    BillableSection 0
  • 0SWD0JZ

    Revision of Synthetic Substitute in Left Knee Joint, Open Approach

    BillableSection 0
  • 0SWD3JZ

    Revision of Synthetic Substitute in Left Knee Joint, Percutaneous Approach

    BillableSection 0
  • 0SWD4JZ

    Revision of Synthetic Substitute in Left Knee Joint, Percutaneous Endoscopic Approach

    BillableSection 0