No office rate
Choose 27598 for disarticulation through the knee joint. Code 27590 describes an amputation through the femur.
On this page
CMS RVU26D · Effective 2026-10-01
27598 Leg amputation Medicare reimbursement rates in Indiana
Removal of the lower leg through the knee joint is reported for a knee-disarticulation amputation, rather than an amputation through the femur. Compare 27598 office and facility rates across CMS payment localities in Indiana.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 27598 in Indiana?
Indiana has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$585.54
1 of 1 localities have a supported rate.
Payment area: Indiana
One mapped payment locality.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Amputation surgery
About 27598: Through-knee leg amputation
Removal of the lower leg through the knee joint is reported for a knee-disarticulation amputation, rather than an amputation through the femur.
At knee-disarticulation surgery, the surgeon separates the lower leg through the knee joint, leaving the femur intact. Orthopedic, vascular, or trauma surgeons may perform this operation for nonviable tissue from severe limb ischemia or infection, or for devastating injury, generally in an operating room. The operative report should establish the amputation level; a cut through the tibia below the knee or through the femur above the knee is a different level.
Report the service for the through-knee procedure and document the indication, operative level, and side. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and the others at 50%. For bilateral surgery, modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeons require supporting documentation, and team surgery is not permitted.
CMS billing rules for 27598
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral procedure with modifier 50 is paid at 150%.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU10.94 · 57%
- Practice expense (office) RVU5.71 · 30%
- Malpractice RVU2.67 · 14%
355
Medicare services in 2024 · #3840 by national volume
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
27598 compared with similar codes
Office rates for Indiana, from the same CMS release.
No office rate
Code 27591 is a femoral-level amputation with primary closure, not a through-knee amputation.
No office rate
Code 27592 describes an open, circular amputation through the femur; 27598 is performed through the knee joint.
Compare 27598 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Indiana →
Office / nonfacility
Unavailable
Facility
$585.54
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 27598 in Indiana.
PPRRVU2026_Oct_nonQPP.csv
2,960
- Code
- 27598
- Physician work
- 10.94
- Practice expense
- 5.71
- Malpractice
- 2.67
GPCI2026.csv
52
- Locality
- Indiana
- Physician work
- 1.000
- Practice expense
- 0.927
- Malpractice
- 0.486
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 10.94 | × 1.000 | 10.9400 |
| Practice expense | 5.71 | × 0.927 | 5.2932 |
| Malpractice | 2.67 | × 0.486 | 1.2976 |
| Total RVUs | 17.5308 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Indiana$585.54
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 10.94 | 1 |
| Practice expense | 5.71 | 0.927 |
| Malpractice | 2.67 | 0.486 |
(10.94 × 1 + 5.71 × 0.927 + 2.67 × 0.486) × $33.4009 = $585.54
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
27598 billing questions
How does 27598 differ from 27590?
27598 is an amputation through the knee joint. Code 27590 describes an amputation through the femur, above the knee.
Does the 90-day global period include postoperative care?
Yes. The global period includes the day-before preoperative visit and 90 days of related postoperative care.
How is a bilateral through-knee amputation reported?
For bilateral surgery, report modifier 50; CMS pays the bilateral procedure at 150%.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeons are paid only with supporting documentation, and team surgery is not permitted.
What documentation supports this code?
The operative report should establish that the amputation was performed through the knee joint and identify the indication and side.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
2,95727592,,Amputate leg at thigh,A,,10.71,5.49,NA,5.49,,2.61,18.81,18.81,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,95827594,,Amputation follow-up surgery,A,,7.11,5.53,NA,5.53,,1.67,14.31,14.31,0,090,0.10,0.69,0.21,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,95927596,,Amputation follow-up surgery,A,,11.01,6.11,NA,6.11,,2.64,19.76,19.76,0,090,0.10,0.69,0.21,2,1,1,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,96027598,,Amputate lower leg at knee,A,,10.94,5.71,NA,5.71,,2.67,19.32,19.32,0,090,0.10,0.69,0.21,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,96127599,,Unlisted px femur/knee,C,,0.00,0.00,,0.00,,0.00,0.00,0.00,0,YYY,0.00,0.00,0.00,2,1,2,1,1,9,,33.4009,09,0,99,0.00,0.00,0.00
2,96227600,,Decompression of lower leg,A,,5.88,4.15,NA,4.15,,1.22,11.25,11.25,0,090,0.10,0.69,0.21,2,1,1,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
2,96327601,,Decompression of lower leg,A,,5.90,5.50,NA,5.50,,1.12,12.52,12.52,0,090,0.10,0.69,0.21,2,1,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4906102,IL,12,EAST ST. LOUIS,1.000,0.920,2.014
5006102,IL,15,SUBURBAN CHICAGO,1.007,1.027,1.772
5106102,IL,99,REST OF ILLINOIS,1.000,0.913,1.563
5208102,IN,00,INDIANA,1.000,0.927,0.486
5305102,IA,00,IOWA,1.000,0.915,0.397
5405202,KS,00,KANSAS,1.000,0.904,0.504
5515102,KY,00,KENTUCKY,1.000,0.889,0.915