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Billing code 35510: Arterial bypassMedicare rate & RVUs

Reports open bypass from a carotid artery to a brachial artery to restore blood flow to an arm when native arterial circulation is inadequate.

CMS RVU26DEffective Oct 1, 2026109 payment localities24 Medicare services in 2024

Medicare pays $1,118.60 for 35510 nationally in a facility.

Medicare rate · 35510

Arterial bypass

Swap in your local Medicare rate.

Work RVUs
23.78
Total RVUs
33.49
Global days
090

National rate · 2026

$1,118.60

Facility setting, before claim adjustments.

See every locality for 35510 → · 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.

On this page 10 sections
  1. Medicare rate
  2. What 35510 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 35510 covers

Code 35510 describes an open operation that routes blood from a carotid artery to a brachial artery through a bypass graft. Vascular surgeons typically perform it in a hospital operating room for selected patients with serious arm ischemia when the usual proximal arterial inflow is unsuitable. The operative report should identify the inflow and outflow arteries, side, graft route and conduit, and the reason for the reconstruction.

Select this code when the bypass connects the carotid and brachial arteries; a bypass between different named vessels belongs to the code matching those sites. The 90-day global period includes 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 other procedures at 50%. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeons require 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 35510 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

35510 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$1,015.30
Alaska*Unavailable$1,432.43
ArizonaUnavailable$1,085.59
ArkansasUnavailable$1,003.01
AtlantaUnavailable$1,163.74
AustinUnavailable$1,104.07
BakersfieldUnavailable$1,065.92
Baltimore/Surr. CntysUnavailable$1,188.28
BeaumontUnavailable$1,093.27
BrazoriaUnavailable$1,079.18

35510 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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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
35510 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 35510 rate is calculated

Each of 35510’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 · 35510

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 23.78Practice expense 3.63Malpractice 6.08

33.4900 adjusted RVUs×$33.4009 conversion factor=$1,118.60

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 35510

35510 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 35510

Arterial bypass

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 · 35510

Arterial 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.

  • 24 Unrelated E/M visit by the same physician
  • 79 Unrelated procedure (starts its own global period)
  • 58 Staged, more extensive, or therapy procedure that was planned
  • 78 Unplanned 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

35510 without 50 · national facility

$1,118.60

Arterial bypass

35510-50 · Bilateral: 150%

$1,677.90

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

35510 compared with similar codes

Compare codes

35510 vs 35512 vs 35522 vs 35501: national Medicare rates

Swap in your local Medicare rate.

  • 35510
    Arterial bypass · 23.78 wRVU
    —
  • 35512
    Arterial bypass · 23.29 wRVU
    —
  • 35522
    Arterial bypass · 22.57 wRVU
    —
  • 35501
    Carotid bypass · 28.36 wRVU
    —

How to choose

35512Arterial bypass
35512 is for a bypass from the subclavian artery to the brachial artery. Choose 35510 when the bypass originates from a carotid artery.
35522Arterial bypass
35522 describes an axillary-to-brachial bypass. The distal brachial endpoint is shared, but the inflow vessel differs from 35510.
35501Carotid bypass
35501 describes a carotid bypass with a different distal target. Use 35510 only when the brachial artery is the outflow vessel.

Codes related to 35510

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

Codes related to 35510
CodeHow it relatesNational office range
Often billed with
35500Vein harvestMay be reported for a separately performed upper-extremity vein harvest used for bypass.No office rate
Same family
35501Carotid bypassA related carotid bypass code with a different distal vessel.No office rate
35506Arterial bypassA related bypass between subclavian and carotid arteries.No office rate
35508Arterial bypassA related carotid bypass code with vertebral artery outflow.No office rate
35512Arterial bypassA related subclavian-to-brachial bypass.No office rate
35522Arterial bypassA related axillary-to-brachial bypass.No office rate

35510 billing questions

How is 35510 distinguished from other upper-extremity bypass codes?

Use 35510 when the bypass runs from a carotid artery to a brachial artery. Select the code for the actual inflow and outflow vessels when either endpoint differs.

What operative details support reporting 35510?

Document the clinical indication, side, carotid inflow, brachial outflow, graft route and conduit, and the completed anastomoses.

Does the 90-day global period include postoperative care?

Yes. It includes the day-before preoperative visit and 90 days of related postoperative care.

How does Medicare handle bilateral reporting and multiple procedures?

Bilateral reporting with modifier 50 is paid at 150%. For multiple procedures in one session, the highest-valued procedure is paid in full and the others at 50%.

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.

Is vein harvest included in 35510?

If a separate vein-harvest service is performed, evaluate 35500 and document the harvest. Do not assume separate payment without checking the applicable coding edits.

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 35510PPRRVU2026_Oct_nonQPP.csv, line 4,336 (RVU26D)

Open CMS sourceHow we calculate rates

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