Billing code 35311: Arterial endarterectomyMedicare rate & RVUs in Utah
Open endarterectomy of the brachiocephalic trunk through a thoracic incision treats obstructive arterial disease, with patch closure included when performed.
CMS doesn’t publish an office rate for 35311 in Utah.
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 9 sections
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.
35311 in Utah
| Payment locality | Office | Facility |
|---|---|---|
| Utah | Unavailable | $1,420.78 |
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
Swap in your local Medicare rate.
Work 27.89Practice expense 9.21Malpractice 6.67
All indexes start 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
| 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 · 35311
Arterial endarterectomy
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
35311 without 50 · national facility
$1,461.96
Arterial endarterectomy
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).
35311 compared with similar codes
Compare codes
35311 vs 35301 vs 35321 vs 35331: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 35301Arterial endarterectomy
- Use 35301 for carotid, vertebral, or subclavian endarterectomy through a neck incision. This code identifies the brachiocephalic trunk and a thoracic approach.
- 35321Arterial endarterectomy
- Code 35321 is for subclavian artery endarterectomy through a thoracic incision; this code is for the brachiocephalic trunk.
- 35331Arterial endarterectomy
- Code 35331 addresses endarterectomy of the aortoiliac segment, not the brachiocephalic trunk.
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
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