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CPT code 35301: Arterial endarterectomy, carotid, vertebral, or subclavian2026 Medicare rate & RVUs

Reports plaque removal from a carotid, vertebral, or subclavian artery through a neck incision, with patch closure included when performed.

CMS RVU26DEffective Oct 1, 2026109 payment localities27K Medicare services in 2024

Medicare pays $1,025.74 for 35301 nationally in a facility.

Medicare rate · 35301

Arterial endarterectomy, carotid, vertebral, or subclavian

Office or facility?

Work RVUs
20.63
Total RVUs
30.71
Global days
090

National rate · 2026

$1,025.74

Facility setting, before claim adjustments.

See every locality for 35301 →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 35301 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 35301 covers

This operation removes obstructive atherosclerotic plaque from a carotid, vertebral, or subclavian artery reached through a neck incision. It is commonly performed for clinically significant carotid stenosis, including disease associated with a transient ischemic attack or stroke, and may also be selected for other qualifying disease in the named arteries. A vascular or other qualified surgeon typically performs it in a hospital operating room. If the surgeon closes the artery with a patch, that work is included in this procedure.

Choose the code based on the treated artery and neck-incision approach. The operative report should identify the vessel and side, describe the endarterectomy and any patch closure, and clarify whether the operation is a reoperation. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For bilateral surgery reported with modifier 50, payment is 150%. In a same-session multiple-procedure claim, the highest-valued procedure is paid in full and other procedures at 50%. 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.

Where 35301 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

35301 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$928.34
AlaskaUnavailable$1,300.14
ArizonaUnavailable$995.07
ArkansasUnavailable$916.68
Atlanta, GAUnavailable$1,066.32
Austin, TXUnavailable$1,015.85
Bakersfield, CAUnavailable$983.97
Baltimore area, MDUnavailable$1,090.71
Beaumont, TXUnavailable$998.84
Brazoria, TXUnavailable$990.45

35301 rates by state

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

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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
35301 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 35301 rate is calculated

Each of 35301’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 · 35301

RVUs × geographic indexes × conversion factor

Office or facility?

Work20.63

20.63 RVUs× 1.000 GPCI

Practice expense4.72

4.72 RVUs× 1.000 GPCI

Malpractice5.36

5.36 RVUs× 1.000 GPCI

Adjusted RVUs

30.7100

Conversion factor

$33.4009

Medicare rate

$1,025.74

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

Payment rules and modifiers for 35301

35301 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 35301

Arterial endarterectomy, carotid, vertebral, or subclavian

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 · 35301

Arterial endarterectomy, carotid, vertebral, or subclavian

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

35301 without 50 · national facility

$1,025.74

Arterial endarterectomy, carotid, vertebral, or subclavian

35301-50 · Bilateral: 150%

$1,538.61

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

35301 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • 35301

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

    Not priced

  • 35311

    Arterial endarterectomy, brachiocephalic trunk27.89 wRVU

    Not priced

  • 35390

    Carotid reoperation, repeat endarterectomy3.11 wRVU

    Not priced

  • 35371

    Arterial endarterectomy, femoral, profunda, or popliteal14.93 wRVU

    Not priced

How to choose

35311Arterial endarterectomyBrachiocephalic trunk
35301 is for the covered carotid, vertebral, or subclavian artery procedure through a neck incision. 35311 addresses innominate or subclavian artery work through a thoracic incision.
35390Carotid reoperationRepeat endarterectomy
35390 is an add-on for carotid reoperation and supplements the primary procedure code. It is not a substitute for 35301.
35371Arterial endarterectomyFemoral, profunda, or popliteal
35371 applies to endarterectomy of the femoral or profunda femoris arteries; 35301 is for the covered arteries approached through a neck incision.

Codes related to 35301

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

Codes related to 35301
CodeHow it relatesNational office range
Add-on codes
35390Carotid reoperation, repeat endarterectomyPrimary carotid endarterectomy code when the separately reportable carotid reoperation add-on applies.No office rate
Same family
35311Arterial endarterectomy, brachiocephalic trunkEndarterectomy code for innominate or subclavian artery work through a thoracic incision.No office rate
35321Arterial endarterectomy, axillary-brachial arteryEndarterectomy code for aortoiliac disease rather than the arteries reached through a neck incision.No office rate
35371Arterial endarterectomy, femoral, profunda, or poplitealEndarterectomy code for femoral or profunda femoris artery disease.No office rate

35301 billing questions

When is this code appropriate instead of 35311?

Use 35301 for the covered carotid, vertebral, or subclavian artery procedure performed through a neck incision. Code 35311 describes a different operative approach for innominate or subclavian artery work through a thoracic incision.

Is patch closure separately reported?

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

How should bilateral procedures be reported?

For bilateral surgery, report modifier 50; CMS pays the bilateral procedure 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.

How does 35390 relate to this code?

35390 is an add-on for carotid reoperation and is reported in addition to the primary procedure when applicable; it does not replace 35301.

What postoperative care is included?

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

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 35301PPRRVU2026_Oct_nonQPP.csv, line 4,312 (RVU26D)

Open CMS sourceHow we calculate rates

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