DRG 487
Surgical DRGKnee Procedures with Principal Diagnosis of Infection without CC/MCC
What is MS-DRG 487?
MS-DRG 487 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 08 (MDC 08) without a significant Complication or Comorbidity. It maps to 56 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 1.5662 with a geometric mean length of stay of 3.5 days and an arithmetic mean of 4.1 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
FY 2026 Payment Data
Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).
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.
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