No office rate
Use 35637 when the bypass runs from the aorta to one iliac artery; use 35638 when both iliac arteries are outflow targets.
On this page
CMS RVU26D · Effective 2026-10-01
35637 Aortoiliac bypass Medicare reimbursement rates in Utah
Reports open bypass from the abdominal aorta to one iliac artery using a non-vein graft, typically to restore flow in aortoiliac occlusive disease. Compare 35637 office and facility rates across CMS payment localities in Utah.
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 35637 in Utah?
Utah has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$1470.25
1 of 1 localities have a supported rate.
Payment area: Utah
One mapped payment locality.
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 35637: Aorta-to-iliac bypass with non-vein graft
Reports open bypass from the abdominal aorta to one iliac artery using a non-vein graft, typically to restore flow in aortoiliac occlusive disease.
This code describes an open vascular bypass that routes blood from the abdominal aorta to one iliac artery using a conduit other than vein, commonly a prosthetic graft. A vascular surgeon typically performs it in a hospital operating room for significant aortoiliac occlusive disease when direct flow to the iliac circulation needs to be restored. The code is distinguished by the aortic inflow, the iliac outflow, and the non-vein conduit.
Choose the code from the operative report’s documented inflow, outflow, and conduit; a bypass to both iliac arteries or to a femoral artery has a different code. The report should support the treated vessels and graft used. This major operation has a 90-day global period that includes the day-before preoperative visit and related postoperative care during that period. When other procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard multiple-procedure reduction. Modifier 50 is inappropriate. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 35637
- 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 RVU32.22 · 71%
- Practice expense (office) RVU4.67 · 10%
- Malpractice RVU8.25 · 18%
26
Medicare services in 2024 · #5755 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.
35637 compared with similar codes
Office rates for Utah, from the same CMS release.
No office rate
35646 describes an aortic bypass to both femoral arteries. This code is for an iliac outflow target, not bilateral femoral targets.
No office rate
35647 is for an aortic bypass to one femoral artery. Select this code when the documented distal target is femoral rather than iliac.
Compare 35637 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.
1 of 1 payment localities
Utah →
Office / nonfacility
Unavailable
Facility
$1470.25
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 35637 in Utah.
PPRRVU2026_Oct_nonQPP.csv
4,384
- Code
- 35637
- Physician work
- 32.22
- Practice expense
- 4.67
- Malpractice
- 8.25
GPCI2026.csv
104
- Locality
- Utah
- Physician work
- 1.000
- Practice expense
- 0.940
- Malpractice
- 0.898
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 32.22 | × 1.000 | 32.2200 |
| Practice expense | 4.67 | × 0.940 | 4.3898 |
| Malpractice | 8.25 | × 0.898 | 7.4085 |
| Total RVUs | 44.0183 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Utah$1470.25
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 32.22 | 1 |
| Practice expense | 4.67 | 0.94 |
| Malpractice | 8.25 | 0.898 |
(32.22 × 1 + 4.67 × 0.94 + 8.25 × 0.898) × $33.4009 = $1470.25
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
35637 billing questions
How is this code distinguished from 35638?
35637 is for a bypass from the aorta to one iliac artery. 35638 describes the aortic bypass when both iliac arteries are the outflow targets.
Should modifier 50 be reported?
No. The CMS bilateral adjustment does not apply to this code, and modifier 50 is inappropriate for its descriptor and anatomy.
What postoperative care is included?
The 90-day global period includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.
What documentation supports code selection?
The operative report should identify the aortic inflow, the iliac outflow target, and use of a conduit other than vein. These details distinguish this service from bypasses to both iliac arteries or to a femoral artery.
How are other same-session procedures paid?
The highest-valued procedure is paid in full, and other procedures performed in the same session are subject to the standard multiple-procedure reduction.
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.
4,38135633,,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
4,38535638,,Bpg aortobi-iliac,A,,32.76,6.30,NA,6.30,,8.28,47.34,47.34,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,38635642,,Bpg carotid-vertebral,A,,18.47,3.90,NA,3.90,,4.72,27.09,27.09,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,38735645,,Bpg subclavian-vertebral,A,,17.97,3.31,NA,3.31,,4.60,25.88,25.88,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
10104412,TX,15,GALVESTON,1.008,0.993,0.828
10204412,TX,18,HOUSTON,1.008,0.993,1.376
10304412,TX,99,REST OF TEXAS,1.000,0.949,0.903
10403502,UT,09,UTAH,1.000,0.940,0.898
10514512,VT,50,VERMONT,1.000,0.990,0.506
10611302,VA,00,VIRGINIA,1.000,0.983,0.706
10709202,VI,50,VIRGIN ISLANDS,1.000,1.011,0.985