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Billing code 35361: Arterial endarterectomyMedicare rate & RVUs

Open aortic thromboendarterectomy removes obstructive plaque from the aorta to restore blood flow, with patch grafting included when performed.

CMS RVU26DEffective Oct 1, 2026109 payment localities31 Medicare services in 2024

Medicare pays $1,384.13 for 35361 nationally in a facility.

Medicare rate · 35361

Arterial endarterectomy

Swap in your local Medicare rate.

Work RVUs
29.48
Total RVUs
41.44
Global days
090

National rate · 2026

$1,384.13

Facility setting, before claim adjustments.

See every locality for 35361 → · 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 35361 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 35361 covers

A vascular surgeon uses this code for open removal of obstructive atherosclerotic material from the aorta to improve its channel for blood flow. A patch graft may be used to repair or enlarge the vessel after plaque removal and is included in the service. The procedure is generally performed in an operating room, commonly in a hospital facility, for significant aortic occlusive disease requiring surgical treatment.

Select this code when the treated artery is the aorta; an aortoiliac procedure or endarterectomy of another named artery belongs to a different code. The operative report should identify the aorta as the treatment site and document plaque removal and any patch repair. This is major surgery with a 90-day global period, including the day-before preoperative visit and related postoperative care for 90 days. When multiple procedures are performed in the same session, the highest-valued is paid in full and others at 50%. Bilateral reporting with modifier 50 is paid 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 35361 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

35361 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$1,256.38
Alaska*Unavailable$1,772.98
ArizonaUnavailable$1,343.29
ArkansasUnavailable$1,241.17
AtlantaUnavailable$1,440.07
AustinUnavailable$1,365.96
BakersfieldUnavailable$1,318.54
Baltimore/Surr. CntysUnavailable$1,470.35
BeaumontUnavailable$1,352.97
BrazoriaUnavailable$1,335.28

35361 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
35361 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 35361 rate is calculated

Each of 35361’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 · 35361

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 29.48Practice expense 4.42Malpractice 7.54

41.4400 adjusted RVUs×$33.4009 conversion factor=$1,384.13

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

Payment rules and modifiers for 35361

35361 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 35361

Arterial endarterectomy

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 · 35361

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.

  • 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

35361 without 50 · national facility

$1,384.13

Arterial endarterectomy

35361-50 · Bilateral: 150%

$2,076.20

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

35361 compared with similar codes

Compare codes

35361 vs 35331 vs 35321 vs 35301: national Medicare rates

Swap in your local Medicare rate.

  • 35361
    Arterial endarterectomy · 29.48 wRVU
    —
  • 35331
    Arterial endarterectomy · 27.03 wRVU
    —
  • 35321
    Arterial endarterectomy · 16.18 wRVU
    —
  • 35301
    Arterial endarterectomy · 20.63 wRVU
    —

How to choose

35331Arterial endarterectomy
Choose 35361 for aortic thromboendarterectomy. Choose 35331 when the operation treats the aortoiliac segment.
35321Arterial endarterectomy
35321 is for iliac artery treatment; 35361 is for treatment of the aorta.
35301Arterial endarterectomy
35301 applies to the carotid, vertebral, or subclavian territory, while 35361 applies to the aorta.

Codes related to 35361

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

Codes related to 35361
CodeHow it relatesNational office range
Same family
35331Arterial endarterectomyAortoiliac thromboendarterectomy; distinguish the treated anatomy from aortic-only treatment.No office rate
35321Arterial endarterectomyIliac artery thromboendarterectomy, rather than treatment of the aorta.No office rate
35301Arterial endarterectomyThromboendarterectomy in the carotid, vertebral, or subclavian territory.No office rate
35371Arterial endarterectomyThromboendarterectomy in the femoral territory, not the aorta.No office rate

35361 billing questions

How is this code distinguished from 35331?

Use 35361 for thromboendarterectomy of the aorta. Code 35331 describes treatment involving the aortoiliac segment.

Is patch grafting separately reported?

No. Patch grafting, when performed as part of the aortic thromboendarterectomy, is included in this service.

What documentation supports selecting this code?

The operative report should identify the aorta as the treated vessel and describe removal of obstructive plaque, including any patch repair.

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

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

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 35361PPRRVU2026_Oct_nonQPP.csv, line 4,324 (RVU26D)

Open CMS sourceHow we calculate rates

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