FeeBase
Log inGet started
Menu
On this page

CMS RVU26D · Effective 2026-10-01

35563 Iliac bypass Medicare reimbursement rates in Colorado

Reports an open arterial bypass using a vein conduit to route blood between iliac arteries when the native iliac pathway is unusable. Compare 35563 office and facility rates across CMS payment localities in Colorado.

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 35563 in Colorado?

Colorado 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

$1175.84

1 of 1 localities have a supported rate.

Payment area: Colorado

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.

Find 35563 in your payment locality →

Vascular surgery

About 35563: Iliac-to-iliac vein bypass graft

Reports an open arterial bypass using a vein conduit to route blood between iliac arteries when the native iliac pathway is unusable.

Code 35563 represents an open arterial bypass using a vein conduit, with the connection running from one iliac artery to another. Vascular surgeons perform this operation in an operating room to route blood around diseased, obstructed, or otherwise unusable iliac arterial segments. The operative report should identify the donor and recipient iliac vessels, the bypass route, and the vein conduit; a connection from the aorta or to a femoral artery is a different route.

Select the code from the actual inflow and outflow vessels and the conduit used, not from the diagnosis alone. CMS assigns this major surgery a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures at 50%. A bilateral procedure reported with modifier 50 is paid at 150%. Assistant-at-surgery services may be paid; co-surgeons are paid only with supporting documentation, and team surgery is not permitted.

CMS billing rules for 35563

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 RVU25.47 · 71%
  • Practice expense (office) RVU4.09 · 11%
  • Malpractice RVU6.50 · 18%

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.

35563 compared with similar codes

Office rates for Colorado, from the same CMS release.

35663

Arterial bypass

Iliac-to-iliac, nonvein conduit

No office rate

Both codes describe an iliac-to-iliac bypass route. Choose 35563 when the conduit is vein and 35663 when it is another type of conduit.

35537

Aortoiliac bypass

Vein conduit, iliac outflow

No office rate

35537 describes an aortoiliac bypass. Use 35563 when both ends of the bypass are iliac arteries rather than one end being the aorta.

35565

Arterial bypass

Vein conduit, iliac-to-femoral

No office rate

35565 describes an iliac-to-femoral bypass. Use 35563 when the outflow connection is to another iliac artery, not a femoral artery.

Compare 35563 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

Office and facility base rates · shared scale starting at $0

Need rates for a whole code list?

Fee-sheet and API access are in early access. Tell us which codes and locations your team needs.

Explore fee-sheet early access →

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 35563 in Colorado.

PPRRVU2026_Oct_nonQPP.csv

4,361

Code
35563
Physician work
25.47
Practice expense
4.09
Malpractice
6.50

GPCI2026.csv

37

Locality
Colorado
Physician work
1.012
Practice expense
1.064
Malpractice
0.781
Facility calculation for 35563 in Colorado
ComponentRVULocality factorAdjusted
Physician work25.47× 1.01225.7756
Practice expense4.09× 1.0644.3518
Malpractice6.50× 0.7815.0765
Total RVUs35.2039
Conversion factor× 33.4009

Facility rate, Colorado$1175.84

Values as parsed from CMS release RVU26D, effective 2026-10-01. The amount is rounded to the nearest cent only at the end.
Explore RVUs, geographic factors and the full formula

Facility

Facility calculation inputs
ComponentRVULocal GPCI
Work25.471.012
Practice expense4.091.064
Malpractice6.50.781

(25.47 × 1.012 + 4.09 × 1.064 + 6.5 × 0.781) × $33.4009 = $1175.84

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.

35563 billing questions

When is 35563 the right bypass code?

Use it when the bypass connects one iliac artery to another and uses a vein conduit. Identify both vessels and the conduit in the operative report.

How does 35563 differ from 35663?

The route is iliac-to-iliac for both, but 35563 is for a vein conduit; 35663 is used for a conduit other than vein.

Would an aorta-to-iliac bypass be reported with 35563?

No. 35563 describes an iliac-to-iliac route; a bypass involving the aorta and iliac artery is represented by a different route-specific code.

What postoperative care is included in the global period?

The 90-day global includes the day-before preoperative visit and 90 days of related postoperative care.

Can an assistant or co-surgeon be reported?

Assistant-at-surgery services may be paid. Co-surgeon payment requires supporting documentation; team surgery is not permitted.

How are multiple procedures and bilateral reporting handled?

For multiple procedures in the same session, the highest-valued procedure is paid in full and the others at 50%. A bilateral procedure reported with modifier 50 is paid at 150%.

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.

RVUs for 35563PPRRVU2026_Oct_nonQPP.csv, line 4,361 (RVU26D)
Geographic factors for ColoradoGPCI2026.csv, line 37 (RVU26D)
Open CMS sourceHow this rate is calculatedBuild a fee sheet