No office rate
Choose 35602 for a bypass from one side of the neck to the opposite carotid. Choose 35601 for a common carotid-to-internal carotid bypass on the same side.
On this page
CMS RVU26D · Effective 2026-10-01
35602 Carotid bypass Medicare reimbursement rates in Washington
Open bypass connecting carotid arteries across the neck to restore or maintain cerebral blood flow in selected carotid occlusive or reconstructive cases. Compare 35602 office and facility rates across CMS payment localities in Washington.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 35602 in Washington?
Washington has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$1127.81–$1197.83
2 of 2 localities have a supported rate.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Vascular surgery
About 35602: Carotid-to-contralateral carotid bypass
Open bypass connecting carotid arteries across the neck to restore or maintain cerebral blood flow in selected carotid occlusive or reconstructive cases.
Code 35602 represents open bypass reconstruction that carries arterial blood from a carotid artery on one side of the neck to a carotid artery on the opposite side through an interposed conduit. Vascular surgeons perform it in the operating room when a cross-neck route is selected to restore or maintain cerebral inflow, including selected complex carotid occlusive or reconstructive cases. The operation establishes a new path between the vessels; it differs from removing plaque from a carotid artery or connecting a carotid to a subclavian or vertebral artery.
Report the code when the operative note documents the donor and recipient carotid arteries and the completed contralateral bypass, not merely vessel exposure or a planned graft. Documentation should identify the indication, conduit, and anastomoses, along with any additional procedures performed. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and the others are subject to the standard 50% reduction. Modifier 50 is inappropriate. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 35602
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU23.53 · 68%
- Practice expense (office) RVU5.13 · 15%
- Malpractice RVU5.95 · 17%
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.
35602 compared with similar codes
Office rates for Washington, from the same CMS release.
No office rate
35606 connects a carotid artery to a subclavian artery; 35602 connects carotid arteries across the neck.
No office rate
35642 connects a carotid artery to a vertebral artery. Use 35602 when the bypass recipient is the carotid artery on the opposite side.
Compare 35602 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
2 of 2 payment localities
Rest Of Washington →
Office / nonfacility
Unavailable
Facility
$1127.81
Seattle (King Cnty) →
Office / nonfacility
Unavailable
Facility
$1197.83
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35602 billing questions
How does 35602 differ from 35601?
35602 connects carotid arteries on opposite sides of the neck. 35601 describes a bypass from a common carotid artery to the internal carotid artery on the same side.
When is modifier 50 appropriate?
Do not append modifier 50 to 35602. CMS identifies bilateral adjustment as inappropriate for this code.
What operative details support reporting 35602?
Document the carotid donor and recipient vessels, the contralateral route, the conduit and anastomoses, and the clinical reason for the bypass.
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.
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.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
4,36935587,,Vein byp pop-tibl peroneal,A,,25.55,4.22,NA,4.22,,6.53,36.30,36.30,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,37035600,,Open hrv uxtr art 1 sgm cab,A,,3.50,0.70,NA,0.70,,0.86,5.06,5.06,0,ZZZ,0.00,0.00,0.00,0,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,37135601,,Bpg com crtd-ipsi int crtd,A,,26.41,4.80,NA,4.80,,6.79,38.00,38.00,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,37235602,,Bpg crtd-clat crtd,A,,23.53,5.13,NA,5.13,,5.95,34.61,34.61,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,37335606,,Bpg carotid-subclavian,A,,21.90,4.41,NA,4.41,,5.57,31.88,31.88,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,37435612,,Bpg subclavian-subclavian,A,,19.84,3.64,NA,3.64,,5.06,28.54,28.54,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,37535616,,Bpg subclavian-axillary,A,,21.27,3.32,NA,3.32,,5.43,30.02,30.02,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00