No office rate
Both use iliac inflow, but 35632 directs the graft to the celiac artery; 35633 directs it to a mesenteric artery.
On this page
CMS RVU26D · Effective 2026-10-01
35633 Arterial bypass Medicare reimbursement rates in Pennsylvania
Reports open bypass using a non-vein graft from an iliac artery to a mesenteric artery to restore blood flow in mesenteric occlusive disease. Compare 35633 office and facility rates across CMS payment localities in Pennsylvania.
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 35633 in Pennsylvania?
Pennsylvania 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
$1767.72–$1896.26
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 35633: Ilio-mesenteric bypass graft
Reports open bypass using a non-vein graft from an iliac artery to a mesenteric artery to restore blood flow in mesenteric occlusive disease.
This code describes open arterial revascularization using a graft other than vein to carry blood from an iliac artery to a mesenteric artery, commonly the superior mesenteric artery. Vascular surgeons may perform it for mesenteric arterial occlusive disease when an open bypass is selected. The operative report should establish the inflow artery, mesenteric outflow target, conduit, and indication for revascularization.
Choose this code for the iliac-to-mesenteric route; a different inflow or outflow site points to a different bypass code. Document the graft path and each bypass performed during the session. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and others at 50%. Modifier 50 applies to a bilateral procedure, paid at 150%. An assistant at surgery may be paid; co-surgeons require supporting documentation, and team surgery is not permitted.
CMS billing rules for 35633
- 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 procedure with modifier 50 is paid at 150%.
- 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 RVU38.13 · 71%
- Practice expense (office) RVU6.11 · 11%
- Malpractice RVU9.72 · 18%
176
Medicare services in 2024 · #4439 by national volume
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.
35633 compared with similar codes
Office rates for Pennsylvania, from the same CMS release.
No office rate
The outflow target decides between them: 35634 is for an iliac-to-renal bypass, while 35633 is for an iliac-to-mesenteric bypass.
No office rate
Choose based on inflow and target: 35631 uses aortic inflow for visceral artery bypass, while 35633 uses iliac inflow to a mesenteric artery.
Compare 35633 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
Metropolitan Philadelphia →
Office / nonfacility
Unavailable
Facility
$1896.26
Rest Of Pennsylvania →
Office / nonfacility
Unavailable
Facility
$1767.72
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35633 billing questions
How is this code distinguished from 35632?
Use 35633 when the graft runs from an iliac artery to a mesenteric artery. Code 35632 describes an iliac-to-celiac bypass.
When would 35631 be a better fit?
Code 35631 is for an aortic inflow route to the specified visceral arteries. This code is for an iliac inflow to a mesenteric artery.
What operative details support reporting 35633?
The operative report should identify the iliac inflow, mesenteric outflow, graft conduit, and the bypass performed. These details distinguish the service from bypasses to other targets.
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; other procedures in that session are paid at 50% under the standard multiple procedure reduction.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeons are paid only with 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.
4,37835626,,Bpg aor-subcla/innom/carotid,A,,28.41,8.89,NA,8.89,,7.05,44.35,44.35,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,37935631,,Bpg aor-celiac-msn-renal,A,,35.13,6.06,NA,6.06,,8.93,50.12,50.12,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,38035632,,Bpg ilio-celiac,A,,35.23,4.88,NA,4.88,,9.01,49.12,49.12,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,38135633,,Bpg ilio-mesenteric,A,,38.13,6.11,NA,6.11,,9.72,53.96,53.96,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,38235634,,Bpg iliorenal,A,,34.45,4.82,NA,4.82,,8.81,48.08,48.08,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,38335636,,Bpg splenorenal,A,,30.96,4.53,NA,4.53,,7.92,43.41,43.41,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,38435637,,Bpg aortoiliac,A,,32.22,4.67,NA,4.67,,8.25,45.14,45.14,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00