FeeBase
Log inGet started
Menu

CPT code 35311: Arterial endarterectomy, brachiocephalic trunk2026 Medicare rate & RVUs

Open endarterectomy of the brachiocephalic trunk through a thoracic incision treats obstructive arterial disease, with patch closure included when performed.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare pays $1,461.96 for 35311 nationally in a facility.

Medicare rate · 35311

Arterial endarterectomy, brachiocephalic trunk

Office or facility?

Work RVUs
27.89
Total RVUs
43.77
Global days
090

National rate · 2026

$1,461.96

Facility setting, before claim adjustments.

See every locality for 35311 →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 35311 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 35311 covers

This code represents open removal of obstructive plaque from the brachiocephalic trunk through a thoracic incision; patch closure, if performed, is part of the service. A vascular or cardiothoracic surgeon typically performs the operation in a hospital operating room for clinically significant trunk disease affecting blood flow to the head or right upper extremity. The operative report should identify the brachiocephalic trunk, the thoracic approach, and the endarterectomy performed.

Report the code for the specified vessel and approach, not for a neck-incision endarterectomy of the carotid, vertebral, or subclavian arteries. The service has a 90-day global period, including 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 paid at 50%. For a bilateral service reported with modifier 50, payment is 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 35311 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

35311 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$1,326.82
AlaskaUnavailable$1,847.70
ArizonaUnavailable$1,420.34
ArkansasUnavailable$1,310.53
Atlanta, GAUnavailable$1,514.45
Austin, TXUnavailable$1,456.27
Bakersfield, CAUnavailable$1,422.08
Baltimore area, MDUnavailable$1,552.12
Beaumont, TXUnavailable$1,418.45
Brazoria, TXUnavailable$1,417.63

35311 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

Explore a state

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
35311 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 35311 rate is calculated

Each of 35311’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 · 35311

RVUs × geographic indexes × conversion factor

Office or facility?

Work27.89

27.89 RVUs× 1.000 GPCI

Practice expense9.21

9.21 RVUs× 1.000 GPCI

Malpractice6.67

6.67 RVUs× 1.000 GPCI

Adjusted RVUs

43.7700

Conversion factor

$33.4009

Medicare rate

$1,461.96

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

Payment rules and modifiers for 35311

35311 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 35311

Arterial endarterectomy, brachiocephalic trunk

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 · 35311

Arterial endarterectomy, brachiocephalic trunk

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

35311 without 50 · national facility

$1,461.96

Arterial endarterectomy, brachiocephalic trunk

35311-50 · Bilateral: 150%

$2,192.94

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

35311 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • 35311

    Arterial endarterectomy, brachiocephalic trunk27.89 wRVU

    Not priced

  • 35301

    Arterial endarterectomy, carotid, vertebral, or subclavian20.63 wRVU

    Not priced

  • 35321

    Arterial endarterectomy, axillary-brachial artery16.18 wRVU

    Not priced

  • 35331

    Arterial endarterectomy, aortoiliac segment27.03 wRVU

    Not priced

How to choose

35301Arterial endarterectomyCarotid, vertebral, or subclavian
Use 35301 for carotid, vertebral, or subclavian endarterectomy through a neck incision. This code identifies the brachiocephalic trunk and a thoracic approach.
35321Arterial endarterectomyAxillary-brachial artery
Code 35321 is for subclavian artery endarterectomy through a thoracic incision; this code is for the brachiocephalic trunk.
35331Arterial endarterectomyAortoiliac segment
Code 35331 addresses endarterectomy of the aortoiliac segment, not the brachiocephalic trunk.

Codes related to 35311

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

Codes related to 35311
CodeHow it relatesNational office range
Same family
35301Arterial endarterectomy, carotid, vertebral, or subclavianOpen endarterectomy of carotid, vertebral, or subclavian arteries through a neck incision.No office rate
35321Arterial endarterectomy, axillary-brachial arteryOpen endarterectomy of the subclavian artery through a thoracic incision.No office rate
35331Arterial endarterectomy, aortoiliac segmentOpen endarterectomy of the aortoiliac segment, a different arterial territory.No office rate

35311 billing questions

How is this code distinguished from 35301?

This code is for the brachiocephalic trunk approached through a thoracic incision. Code 35301 covers endarterectomy of the carotid, vertebral, or subclavian artery through a neck incision.

Does patch closure support a separate code?

No. Patch closure, when performed as part of this endarterectomy, is included in the service.

What documentation supports reporting this code?

The operative report should identify the brachiocephalic trunk as the treated vessel and document the thoracic approach and plaque-removal procedure.

How does the 90-day global period affect postoperative billing?

The day-before preoperative visit and 90 days of related postoperative care are included in the global period.

How are multiple procedures in the same session paid?

The highest-valued procedure is paid in full, and other procedures in the same session are paid at 50%. A bilateral service reported with modifier 50 is paid at 150%.

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 35311PPRRVU2026_Oct_nonQPP.csv, line 4,318 (RVU26D)

Open CMS sourceHow we calculate rates

Did this answer your question about what 35311 pays?

Tell us what you were actually trying to work out. We’ll answer you directly, or build the page that does.

Fee sheets · Coming soon

Put 35311 and the rest of your codes on one sheet

Your codes at your locality, with payer contracts beside Medicare.

Join the waitlist