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CPT code 35571: Arterial bypass, popliteal to distal artery2026 Medicare rate & RVUs

Reports a vein-graft bypass from the popliteal artery to a tibial, peroneal, or other distal artery to restore lower-extremity blood flow.

CMS RVU26DEffective Oct 1, 2026109 payment localities632 Medicare services in 2024

Medicare pays $1,200.43 for 35571 nationally in a facility.

Medicare rate · 35571

Arterial bypass, popliteal to distal artery

Office or facility?

Work RVUs
24.88
Total RVUs
35.94
Global days
090

National rate · 2026

$1,200.43

Facility setting, before claim adjustments.

See every locality for 35571 →Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

Your location

Medicare pays by the payment locality where the service is performed.

On this page 10 sections
  1. Medicare rate
  2. What 35571 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 35571 covers

A vascular surgeon uses a vein graft to route blood from the popliteal artery around an obstructed segment to a tibial, peroneal, or other distal artery. The operation is used for lower-extremity arterial occlusive disease when revascularization to a distal target is needed, such as in a patient with limb-threatening ischemia. It is typically performed in a hospital operating room.

Report the bypass when the operative record supports a popliteal inflow artery, a distal arterial outflow target, and a vein-graft technique. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% multiple-procedure reduction. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; 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.

Where 35571 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

35571 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$1,088.51
AlaskaUnavailable$1,530.59
ArizonaUnavailable$1,164.93
ArkansasUnavailable$1,075.15
Atlanta, GAUnavailable$1,248.19
Austin, TXUnavailable$1,186.92
Bakersfield, CAUnavailable$1,148.07
Baltimore area, MDUnavailable$1,275.59
Beaumont, TXUnavailable$1,171.22
Brazoria, TXUnavailable$1,158.86

35571 rates by state

Office rate range in each state. Select a state to see its payment localities.

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
35571 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the 35571 rate is calculated

Each of 35571’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 · 35571

RVUs × geographic indexes × conversion factor

Office or facility?

Work24.88

24.88 RVUs× 1.000 GPCI

Practice expense4.69

4.69 RVUs× 1.000 GPCI

Malpractice6.37

6.37 RVUs× 1.000 GPCI

Adjusted RVUs

35.9400

Conversion factor

$33.4009

Medicare rate

$1,200.43

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

Payment rules and modifiers for 35571

35571 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 35571

Arterial bypass, popliteal to distal artery

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.09/0.84/0.07Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 35571

Arterial bypass, popliteal to distal artery

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.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

35571 without 50 · national facility

$1,200.43

Arterial bypass, popliteal to distal artery

35571-50 · Bilateral: 150%

$1,800.65

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).

When to use modifier 50

35571 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • 35571

    Arterial bypass, popliteal to distal artery24.88 wRVU

    Not priced

  • 35566

    Leg bypass, femoral to tibial or peroneal31.54 wRVU

    Not priced

  • 35570

    Arterial bypass, tibial-to-tibial or peroneal28.42 wRVU

    Not priced

  • 35587

    Vein bypass, popliteal to tibial/peroneal25.55 wRVU

    Not priced

How to choose

35566Leg bypassFemoral to tibial or peroneal
Choose 35566 when the bypass begins at the femoral artery and reaches a tibial, peroneal, or related distal artery; choose 35571 when inflow is popliteal.
35570Arterial bypassTibial-to-tibial or peroneal
Code 35570 describes a bypass between tibial or peroneal arteries. This code uses the popliteal artery as the inflow source.
35587Vein bypassPopliteal to tibial/peroneal
Code 35587 is for an in-situ vein bypass from popliteal to a distal vessel. This code is for a vein-graft bypass not described as in situ.

Codes related to 35571

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 35571
CodeHow it relatesNational office range
Same family
35566Leg bypass, femoral to tibial or peronealVein bypass to a distal leg artery with femoral rather than popliteal inflow.No office rate
35570Arterial bypass, tibial-to-tibial or peronealVein bypass between tibial or peroneal arteries, rather than from the popliteal artery.No office rate
Used instead
35587Vein bypass, popliteal to tibial/peronealIn-situ vein bypass from the popliteal artery to a distal vessel.No office rate
35585Vein bypass, femoral to tibial or peronealIn-situ vein bypass to a distal vessel with femoral inflow.No office rate

35571 billing questions

How is this code distinguished from 35566?

This code describes a bypass originating at the popliteal artery. Code 35566 describes a bypass originating at the femoral artery and extending to a tibial, peroneal, or related distal target.

When is 35587 a better fit?

Use 35587 when the procedure is an in-situ vein bypass from the popliteal artery to a tibial, peroneal, or other distal vessel. This code describes a vein-graft bypass that is not reported as an in-situ bypass.

What operative details support reporting this code?

The operative report should identify the popliteal inflow, the distal outflow artery, and the vein-graft bypass technique. It should also describe the bypass performed and the treated arterial disease.

How is bilateral surgery handled?

CMS lists bilateral reporting with modifier 50 at 150%. The global period is 90 days, including the day-before preoperative visit and related postoperative care.

Can an assistant or co-surgeon be reported?

An assistant at surgery may be paid. 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
RVUs for 35571PPRRVU2026_Oct_nonQPP.csv, line 4,365 (RVU26D)

Open CMS sourceHow we calculate rates

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