CPT code 35301: Arterial endarterectomy, carotid, vertebral, or subclavian2026 Medicare rate & RVUs in Texas
Reports plaque removal from a carotid, vertebral, or subclavian artery through a neck incision, with patch closure included when performed.
CMS doesn’t publish an office rate for 35301 in Texas.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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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 in Texas
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
8 of 8 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Austin, TX | Unavailable | $1,015.85 |
| Beaumont, TX | Unavailable | $998.84 |
| Brazoria, TX | Unavailable | $990.45 |
| Dallas, TX | Unavailable | $1,005.89 |
| Fort Worth, TX | Unavailable | $1,006.64 |
| Galveston, TX | Unavailable | $999.36 |
| Houston, TX | Unavailable | $1,097.47 |
| Rest of Texas | Unavailable | $1,000.34 |
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
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
| 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 · 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.
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).
35301 compared with similar codes
Compare codes · National
4 codes, side by side
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.
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
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