No office rate
35301 reports the primary endarterectomy service. Use 35306 only for a separately treated additional artery in a qualifying operative session.
On this page
CMS RVU26D · Effective 2026-10-01
35306 Arterial endarterectomy Medicare reimbursement rates in Colorado
Reports open plaque removal from an additional artery treated during a qualifying arterial endarterectomy, alongside the primary procedure. Compare 35306 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 35306 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
$390.74
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.
Vascular surgery
About 35306: Additional artery endarterectomy
Reports open plaque removal from an additional artery treated during a qualifying arterial endarterectomy, alongside the primary procedure.
Code 35306 represents treatment of an additional artery during an operative session that includes a primary arterial endarterectomy. The surgeon removes obstructive plaque to reopen the artery; a patch may be used when clinically indicated. Vascular surgeons typically perform this work in the operating room for patients with atherosclerotic arterial narrowing. The operative record should identify the additional artery and describe the separate endarterectomy performed there.
Report 35306 only with a qualifying primary procedure; it is not a standalone service. Documentation should support that a distinct additional artery was treated, rather than recounting work already included in the primary procedure. CMS classifies 35306 as an add-on code, and payment is included within the primary procedure’s global period. The claim should pair the add-on with the primary procedure for the main artery treatment.
CMS billing rules for 35306
- Global period
- Add-on code: billed only together with a primary procedure and paid within that procedure's global period.
Where the value comes from
- Work RVU9.02 · 75%
- Practice expense (office) RVU0.72 · 6%
- Malpractice RVU2.31 · 19%
29
Medicare services in 2024 · #5686 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.
35306 compared with similar codes
Office rates for Colorado, from the same CMS release.
No office rate
35302 is a primary endarterectomy code, while 35306 is the add-on for a distinct additional artery.
No office rate
35305 reports a primary endarterectomy service; 35306 supplements a qualifying primary code when another artery receives separate treatment.
Compare 35306 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
Colorado →
Office / nonfacility
Unavailable
Facility
$390.74
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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 35306 in Colorado.
PPRRVU2026_Oct_nonQPP.csv
4,317
- Code
- 35306
- Physician work
- 9.02
- Practice expense
- 0.72
- Malpractice
- 2.31
GPCI2026.csv
37
- Locality
- Colorado
- Physician work
- 1.012
- Practice expense
- 1.064
- Malpractice
- 0.781
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 9.02 | × 1.012 | 9.1282 |
| Practice expense | 0.72 | × 1.064 | 0.7661 |
| Malpractice | 2.31 | × 0.781 | 1.8041 |
| Total RVUs | 11.6984 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Colorado$390.74
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 9.02 | 1.012 |
| Practice expense | 0.72 | 1.064 |
| Malpractice | 2.31 | 0.781 |
(9.02 × 1.012 + 0.72 × 1.064 + 2.31 × 0.781) × $33.4009 = $390.74
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.
35306 billing questions
Can 35306 be reported by itself?
No. It is an add-on for endarterectomy of an additional artery and must be reported with a qualifying primary procedure.
What distinguishes 35306 from a primary endarterectomy code?
The primary code reports treatment of the main artery. Code 35306 reports endarterectomy of a separate additional artery during the operative session.
What documentation supports an additional artery unit?
The operative report should identify the additional artery and describe the separate plaque-removal work performed on it.
Is the add-on paid outside the primary procedure’s global period?
No. CMS places payment for 35306 within the primary procedure’s global period.
Should 35306 be reported for patch work on the primary artery?
No. The add-on is for an additional artery, not an additional step or patch used during treatment of the primary artery.
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.
4,31435303,,Rechanneling of artery,A,,23.01,4.48,NA,4.48,,5.85,33.34,33.34,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,31535304,,Rechanneling of artery,A,,23.99,4.45,NA,4.45,,6.16,34.60,34.60,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,31635305,,Rechanneling of artery,A,,23.01,4.09,NA,4.09,,5.86,32.96,32.96,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,31735306,,Rechanneling of artery,A,,9.02,0.72,NA,0.72,,2.31,12.05,12.05,0,ZZZ,0.00,0.00,0.00,0,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,31835311,,Rechanneling of artery,A,,27.89,9.21,NA,9.21,,6.67,43.77,43.77,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,31935321,,Rechanneling of artery,A,,16.18,4.41,NA,4.41,,4.14,24.73,24.73,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,32035331,,Rechanneling of artery,A,,27.03,4.12,NA,4.12,,6.90,38.05,38.05,0,090,0.09,0.84,0.07,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3401112,CA,69,VISALIA,1.017,1.096,0.536
3501112,CA,70,YUBA CITY,1.017,1.096,0.536
3601112,CA,75,REST OF CALIFORNIA,1.017,1.096,0.536
3704112,CO,01,COLORADO,1.012,1.064,0.781
3813102,CT,00,CONNECTICUT,1.020,1.077,1.210
3912202,DC,01,DC + MD/VA SUBURBS,1.054,1.178,1.113
4012102,DE,01,DELAWARE,1.005,0.988,0.899