DRG 486

Surgical DRG

Knee Procedures with Principal Diagnosis of Infection with CC

TypeSurgicalMDC08Dx Codes56

What is MS-DRG 486?

MS-DRG 486 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 08 (MDC 08) with a Complication or Comorbidity (CC). It maps to 56 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 2.0911 with a geometric mean length of stay of 5.1 days and an arithmetic mean of 6 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

Classification
Surgical DRG
Procedure-driven grouping
Linked Codes
56 diagnosis
Billable Dx
100%
56 of 56 shown

FY 2026 Payment Data

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

Relative Weight
2.0911
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
5.1 days
Used for transfer payment calculations
Arithmetic Mean LOS
6 days
Average length of stay
Post-Acute Transfer
No
Not subject to the 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
485Knee Procedures with Principal Diagnosis of Infection with MCC3.22718.1 days
486Knee Procedures with Principal Diagnosis of Infection with CCThis page2.09115.1 days
487Knee Procedures with Principal Diagnosis of Infection without CC/MCC1.56623.5 days

Linked ICD-10-CM Diagnosis Mappings

  • A18.02

    Tuberculous arthritis of other joints

    BillableChapter 1
  • A54.42

    Gonococcal arthritis

    BillableChapter 1
  • M00.061

    Staphylococcal arthritis, right knee

    BillableChapter 13
  • M00.062

    Staphylococcal arthritis, left knee

    BillableChapter 13
  • M00.069

    Staphylococcal arthritis, unspecified knee

    BillableChapter 13
  • M00.161

    Pneumococcal arthritis, right knee

    BillableChapter 13
  • M00.162

    Pneumococcal arthritis, left knee

    BillableChapter 13
  • M00.169

    Pneumococcal arthritis, unspecified knee

    BillableChapter 13
  • M00.261

    Other streptococcal arthritis, right knee

    BillableChapter 13
  • M00.262

    Other streptococcal arthritis, left knee

    BillableChapter 13
  • M00.269

    Other streptococcal arthritis, unspecified knee

    BillableChapter 13
  • M00.861

    Arthritis due to other bacteria, right knee

    BillableChapter 13
  • M00.862

    Arthritis due to other bacteria, left knee

    BillableChapter 13
  • M00.869

    Arthritis due to other bacteria, unspecified knee

    BillableChapter 13
  • M00.9

    Pyogenic arthritis, unspecified

    BillableChapter 13
  • M01.X61

    Direct infection of right knee in infectious and parasitic diseases classified elsewhere

    BillableChapter 13
  • M01.X62

    Direct infection of left knee in infectious and parasitic diseases classified elsewhere

    BillableChapter 13
  • M01.X69

    Direct infection of unspecified knee in infectious and parasitic diseases classified elsewhere

    BillableChapter 13
  • M71.061

    Abscess of bursa, right knee

    BillableChapter 13
  • M71.062

    Abscess of bursa, left knee

    BillableChapter 13
  • M71.069

    Abscess of bursa, unspecified knee

    BillableChapter 13
  • M71.161

    Other infective bursitis, right knee

    BillableChapter 13
  • M71.162

    Other infective bursitis, left knee

    BillableChapter 13
  • M71.169

    Other infective bursitis, unspecified knee

    BillableChapter 13
  • M86.061

    Acute hematogenous osteomyelitis, right tibia and fibula

    BillableChapter 13
  • M86.062

    Acute hematogenous osteomyelitis, left tibia and fibula

    BillableChapter 13
  • M86.069

    Acute hematogenous osteomyelitis, unspecified tibia and fibula

    BillableChapter 13
  • M86.161

    Other acute osteomyelitis, right tibia and fibula

    BillableChapter 13
  • M86.162

    Other acute osteomyelitis, left tibia and fibula

    BillableChapter 13
  • M86.169

    Other acute osteomyelitis, unspecified tibia and fibula

    BillableChapter 13
  • M86.261

    Subacute osteomyelitis, right tibia and fibula

    BillableChapter 13
  • M86.262

    Subacute osteomyelitis, left tibia and fibula

    BillableChapter 13
  • M86.269

    Subacute osteomyelitis, unspecified tibia and fibula

    BillableChapter 13
  • M86.361

    Chronic multifocal osteomyelitis, right tibia and fibula

    BillableChapter 13
  • M86.362

    Chronic multifocal osteomyelitis, left tibia and fibula

    BillableChapter 13
  • M86.369

    Chronic multifocal osteomyelitis, unspecified tibia and fibula

    BillableChapter 13
  • M86.461

    Chronic osteomyelitis with draining sinus, right tibia and fibula

    BillableChapter 13
  • M86.462

    Chronic osteomyelitis with draining sinus, left tibia and fibula

    BillableChapter 13
  • M86.469

    Chronic osteomyelitis with draining sinus, unspecified tibia and fibula

    BillableChapter 13
  • M86.561

    Other chronic hematogenous osteomyelitis, right tibia and fibula

    BillableChapter 13
  • M86.562

    Other chronic hematogenous osteomyelitis, left tibia and fibula

    BillableChapter 13
  • M86.569

    Other chronic hematogenous osteomyelitis, unspecified tibia and fibula

    BillableChapter 13
  • M86.661

    Other chronic osteomyelitis, right tibia and fibula

    BillableChapter 13
  • M86.662

    Other chronic osteomyelitis, left tibia and fibula

    BillableChapter 13
  • M86.669

    Other chronic osteomyelitis, unspecified tibia and fibula

    BillableChapter 13
  • M86.8X6

    Other osteomyelitis, lower leg

    BillableChapter 13
  • T84.53XA

    Infection and inflammatory reaction due to internal right knee prosthesis, initial encounter

    BillableChapter 19
  • T84.54XA

    Infection and inflammatory reaction due to internal left knee prosthesis, initial encounter

    BillableChapter 19
  • T84.620A

    Infection and inflammatory reaction due to internal fixation device of right femur, initial encounter

    BillableChapter 19
  • T84.621A

    Infection and inflammatory reaction due to internal fixation device of left femur, initial encounter

    BillableChapter 19
  • T84.622A

    Infection and inflammatory reaction due to internal fixation device of right tibia, initial encounter

    BillableChapter 19
  • T84.623A

    Infection and inflammatory reaction due to internal fixation device of left tibia, initial encounter

    BillableChapter 19
  • T84.624A

    Infection and inflammatory reaction due to internal fixation device of right fibula, initial encounter

    BillableChapter 19
  • T84.625A

    Infection and inflammatory reaction due to internal fixation device of left fibula, initial encounter

    BillableChapter 19
  • T84.629A

    Infection and inflammatory reaction due to internal fixation device of unspecified bone of leg, initial encounter

    BillableChapter 19
  • T84.7XXA

    Infection and inflammatory reaction due to other internal orthopedic prosthetic devices, implants and grafts, initial encounter

    BillableChapter 19