CPT code 37266: Angioplasty, complex, each additional vessel2026 Medicare rate & RVUs

Reports angioplasty of each additional complex femoral or popliteal artery vessel treated during an endovascular revascularization, after the applicable first-vessel procedure.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare pays $2,440.94 for 37266 nationally in the office and $181.37 in a hospital or facility. Local office rates run $2,104.92–$3,447.33.

Medicare rate · 37266

Angioplasty, complex, each additional vessel

Office or facility?

Work RVUs
4
Total RVUs
73.08
Global days
ZZZ

National rate · 2026

$2,440.94

Office setting, before claim adjustments.

See every locality for 37266 →Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

Your location

Medicare pays by the payment locality where the service is performed.

On this page 10 sections
  1. Medicare rate
  2. What 37266 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 37266 covers

This add-on service represents angioplasty in an additional femoral or popliteal artery vessel when the intervention meets CPT criteria for complex treatment. Vascular surgeons, interventional radiologists, and other qualified specialists commonly perform these procedures in an angiography suite or operating room using endovascular access and imaging. The code counts an additional qualifying vessel, not each separate lesion treated within one vessel; it is for angioplasty rather than a service that includes stent placement.

Report it only with an eligible primary revascularization procedure. Select the complex level using the applicable CPT criteria and document the treated vessel, its anatomy, the intervention performed, and the basis for classifying the work as complex. As an add-on, its payment is within the primary procedure's global period. When the procedure is bilateral and modifier 50 is reported, CMS pays 150%.

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 37266 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 payment localities

$2104.92 to $3447.33

$2104.92$2776.13$3447.33
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

37266 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$2,142.92$165.80
Alaska$2,641.75$235.31
Arizona$2,365.90$176.38
Arkansas$2,104.92$163.95
Atlanta, GA$2,484.00$188.28
Austin, TX$2,569.69$179.06
Bakersfield, CA$2,649.85$173.36
Baltimore area, MD$2,616.61$192.09
Beaumont, TX$2,233.87$177.66
Brazoria, TX$2,414.69$175.45

37266 rates by state

Office rate range in each state. Select a state to see its payment localities.

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

$2,104.92

$3,047.33

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
37266 office rate range by state
State / territoryOffice rate rangeLocalities
AK$2,641.751
AL$2,142.921
AR$2,104.921
AZ$2,365.901
CA$2,647.32–$3,447.3329
CO$2,581.421
CT$2,625.411
DC$2,856.841
DE$2,411.151
FL$2,356.41–$2,581.763
GA$2,201.06–$2,484.002
GU$2,739.711
HI$2,739.711
IA$2,228.721
ID$2,242.471
IL$2,260.39–$2,527.314
IN$2,258.801
KS$2,207.011
KY$2,185.631
LA$2,177.86–$2,310.862
MA$2,557.41–$2,884.602
MD$2,467.04–$2,856.843
ME$2,247.09–$2,408.992
MI$2,246.91–$2,382.582
MN$2,485.081
MO$2,126.00–$2,331.743
MS$2,116.431
MT$2,440.881
NC$2,277.211
ND$2,422.491
NE$2,246.341
NH$2,530.381
NJ$2,658.71–$2,815.672
NM$2,258.251
NV$2,438.031
NY$2,317.90–$2,906.325
OH$2,243.151
OK$2,190.451
OR$2,422.61–$2,687.792
PA$2,252.58–$2,542.662
PR$2,465.511
RI$2,515.241
SC$2,263.281
SD$2,420.311
TN$2,219.411
TX$2,233.87–$2,569.698
UT$2,301.191
VA$2,393.11–$2,856.842
VI$2,465.511
VT$2,402.831
WA$2,555.89–$2,958.652
WI$2,323.841
WV$2,156.131
WY$2,432.861

How the 37266 rate is calculated

Each of 37266’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 · 37266

RVUs × geographic indexes × conversion factor

Office or facility?

Work4.00

4.00 RVUs× 1.000 GPCI

Practice expense68.15

68.15 RVUs× 1.000 GPCI

Malpractice0.93

0.93 RVUs× 1.000 GPCI

Adjusted RVUs

73.0800

Conversion factor

$33.4009

Medicare rate

$2,440.94

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

Payment rules and modifiers for 37266

The CMS indicators that decide how 37266 is paid alongside other services.

CMS payment indicators · 37266

Angioplasty, complex, each additional vessel

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

37266 without 50 · national office

$2,440.94

Angioplasty, complex, each additional vessel

37266-50 · Bilateral: 150%

$3,661.41

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).

When to use modifier 50

37266 compared with similar codes

Compare codes · National

4 codes, side by side

Office or facility?

  • 37266

    Angioplasty, complex, each additional vessel4 wRVU

    $2,440.94

  • 37265

    Vessel angioplasty, complex, initial vessel10.5 wRVU

    $6,828.15+$4,387.21

  • 37264

    Peripheral angioplasty, additional vessel, simple category3 wRVU

    $2,183.42−$257.52

  • 37270

    Arterial stenting, complex, each additional vessel5 wRVU

    $3,495.74+$1,054.80

How to choose

37265Vessel angioplastyComplex, initial vessel
37265 covers the first vessel treated at the complex angioplasty level. Use 37266 for each additional qualifying vessel in the same treatment context.
37264Peripheral angioplastyAdditional vessel, simple category
37264 is for each additional vessel treated at the simple angioplasty level; 37266 is for additional vessels meeting complex criteria.
37270Arterial stentingComplex, each additional vessel
37270 covers complex stent treatment of each additional vessel. Use 37266 when the additional-vessel service is complex angioplasty without stent placement.

37266 billing questions

When should 37266 be used instead of 37265?

Use 37265 for the first vessel meeting the complex angioplasty criteria and 37266 for each additional qualifying vessel. The code is not assigned once per lesion within a vessel.

Can 37266 be reported by itself?

No. It is an add-on code and must be billed with an eligible primary revascularization procedure.

Is angioplasty with stent placement reported with 37266?

No. This code represents angioplasty without the stent-placement service. For complex stent treatment of an additional vessel, compare the applicable stent code, including 37270.

How does the global-period payment rule affect 37266?

Payment for this add-on is within the primary procedure's global period; it does not establish a separate global period.

How is bilateral reporting handled?

For a bilateral procedure reported with modifier 50, CMS pays 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 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
RVUs for 37266PPRRVU2026_Oct_nonQPP.csv, line 4,626 (RVU26D)

Open CMS sourceHow we calculate rates

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