Billing code 35671: Leg bypassMedicare rate & RVUs in Utah
Reports a non-vein bypass from the popliteal artery to a tibial or peroneal artery for lower-extremity revascularization.
CMS doesn’t publish an office rate for 35671 in Utah.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 35671 covers
A vascular surgeon uses this procedure to route blood around an obstructed segment of the lower-extremity arterial circulation, connecting the popliteal artery to a tibial or peroneal artery with a conduit other than vein, often a prosthetic graft. It is used for limb revascularization when disease affects the arterial route to the lower leg or foot and the selected bypass begins at the popliteal artery and reaches one of these distal vessels. The operation is generally performed in a hospital operating room.
Select the code based on the bypass endpoints and conduit documented in the operative report. Documentation should identify the popliteal inflow site, the tibial or peroneal outflow vessel, and use of a non-vein conduit; an autogenous vein bypass is coded differently. The service has a 90-day global period, including the day-before preoperative visit and related postoperative care during that period. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures at 50%. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
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.
35671 in Utah
| Payment locality | Office | Facility |
|---|---|---|
| Utah | Unavailable | $1,000.37 |
How the 35671 rate is calculated
Each of 35671’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 35671
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 20.25Practice expense 5.39Malpractice 5.16
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 35671
35671 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 35671
Leg bypass
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.09/0.84/0.07 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 35671
Leg bypass
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
35671 without 50 · national facility
$1,028.75
Leg bypass
35671-50 · Bilateral: 150%
$1,543.13
Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).
35671 compared with similar codes
Compare codes
35671 vs 35571 vs 35666 vs 35656: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 35571Arterial bypass
- The bypass route is the same, but 35571 is for a vein conduit; 35671 is for a conduit other than vein.
- 35666Leg bypass
- Both use a non-vein conduit and reach a tibial or peroneal artery. Use 35666 when the bypass begins at the femoral artery rather than the popliteal artery.
- 35656Arterial bypass
- 35656 describes a non-vein bypass from the femoral artery to the popliteal artery; 35671 begins at the popliteal artery and reaches a tibial or peroneal artery.
35671 billing questions
How does this differ from 35571?
Both codes describe a popliteal-origin bypass to a tibial or peroneal artery. Use 35671 for a conduit other than vein and 35571 for a vein conduit.
When would 35666 be used instead?
35666 describes a non-vein bypass beginning at the femoral artery and reaching an anterior tibial, posterior tibial, or peroneal artery. The documented bypass origin distinguishes it from 35671.
What operative details support 35671?
The operative report should identify the popliteal artery as the bypass inflow, the tibial or peroneal artery as the outflow, and the use of a non-vein conduit.
How is bilateral reporting handled?
When the procedure is performed bilaterally and reported with modifier 50, CMS pays it at 150%.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
Show the CMS file lines behind this rate
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