Billing code 35632: Arterial bypassMedicare rate & RVUs in Illinois
Open bypass from an iliac artery to the celiac artery with a nonvenous conduit, reported for surgical revascularization of compromised celiac blood flow.
CMS doesn’t publish an office rate for 35632 in Illinois.
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 35632 covers
This open vascular operation reroutes blood from an iliac artery to the celiac artery using a conduit other than vein, commonly a prosthetic graft. Vascular surgeons may perform it for celiac artery occlusive disease affecting blood flow to the upper abdominal organs, including in selected patients with chronic mesenteric ischemia. It is performed in an operating room, not as an endovascular intervention.
The operative report should identify the iliac inflow artery, celiac recipient, conduit material, and indication. Choose a different bypass code when the inflow is the aorta or the graft terminates at another visceral artery. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in one session, the highest-valued procedure is paid in full and others at 50%. Modifier 50 receives bilateral payment at 150%. Assistant-at-surgery payment may be allowed; 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 35632 pays more and less in Illinois
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
| Payment locality | Office | Facility |
|---|---|---|
| Chicago | Unavailable | $2,039.42 |
| East St. Louis | Unavailable | $1,932.77 |
| Rest Of Illinois | Unavailable | $1,795.90 |
| Suburban Chicago | Unavailable | $1,885.62 |
How the 35632 rate is calculated
Each of 35632’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 · 35632
RVUs × geographic indexes × conversion factor
Work35.23
35.23 RVUs× 1.000 GPCI
Practice expense4.88
4.88 RVUs× 1.000 GPCI
Malpractice9.01
9.01 RVUs× 1.000 GPCI
Adjusted RVUs
49.1200
Conversion factor
$33.4009
Medicare rate
$1,640.65
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 35632
35632 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 35632
Arterial bypass
| 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 · 35632
Arterial bypass
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
35632 without 50 · national facility
$1,640.65
Arterial bypass
35632-50 · Bilateral: 150%
$2,460.98
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).
35632 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 35631Aortic bypass
- Select 35632 when the bypass begins at an iliac artery and ends at the celiac artery. Select 35631 for aortic inflow to the celiac, mesenteric, or renal arteries.
- 35633Arterial bypass
- Both use iliac inflow, but 35633 identifies a mesenteric artery destination; 35632 identifies the celiac artery.
- 35634Arterial bypass
- Both use iliac inflow, but 35634 identifies a renal artery destination; 35632 identifies the celiac artery.
35632 billing questions
How is this different from 35631?
This code uses an iliac artery as the bypass inflow and the celiac artery as the destination. Code 35631 is for aortic inflow to specified visceral arteries, including the celiac artery.
Does the conduit have to be a prosthetic graft?
The code is for a conduit other than vein. A prosthetic graft is common, but the operative report should establish the conduit used.
What documentation supports this code?
Document the iliac inflow, celiac artery destination, conduit material, and clinical reason for the bypass. The documented target helps distinguish this from iliac-to-mesenteric or iliac-to-renal 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.
How are other same-session procedures and surgical assistants handled?
For multiple procedures in one session, the highest-valued procedure is paid in full and the others at 50%. Assistant-at-surgery payment may be allowed; co-surgeon payment requires supporting documentation, and 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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