CPT code 37291: Atherectomy, complex, each additional vessel2026 Medicare rate & RVUs in Mississippi

Reports complex atherectomy in an additional tibial or peroneal vessel during catheter-based lower-extremity revascularization for peripheral arterial disease.

CMS RVU26DEffective Oct 1, 2026One payment locality

In Mississippi, Medicare pays $950.69 for 37291 in the office and $276.89 when it’s performed in a hospital or facility.

$950.69Office (non-facility)
$276.89Hospital or facility
−11.6%vs the national office rate ($1,075.51)

Check a contract rate as a % of Medicare · 37291 nationwide

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

We’ll open 37291 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Mississippi
  2. What 37291 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 37291 covers

This add-on code describes atherectomy in an additional tibial or peroneal vessel during endovascular treatment of lower-extremity arterial disease. A vascular surgeon, interventional radiologist, or interventional cardiologist may perform the catheter-based procedure in an angiography or operating suite for limb ischemia caused by obstructive disease. Atherectomy removes or debulks plaque to restore blood flow; angioplasty associated with the atherectomy is part of the revascularization service, rather than a separate angioplasty-only service in that vessel.

Report 37291 only with the appropriate primary procedure, such as 37290 for complex atherectomy in the first vessel. Use it for an additional vessel that meets the complex category’s criteria; document the treated vessels, lesion characteristics supporting that classification, and the atherectomy performed. CMS pays this add-on within the primary procedure’s global period. For a bilateral procedure reported with modifier 50, 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.

How Mississippi compares for 37291

Across 109 of 109 payment localities, the office rate for 37291 runs from $938.96 in Arkansas to $1,437.95 in San Benito County, CA. Mississippi pays $950.69. The RVUs are the same everywhere; the geographic indexes change the dollars.

37291 in Mississippi vs other payment areas
  1. Mississippi · this page$950.69
  2. Los Angeles, CA · California$1,218.10+$267.41
  3. Washington, DC area · District of Columbia$1,237.10+$286.41
  4. Miami, FL · Florida$1,177.80+$227.11
  5. Chicago, IL · Illinois$1,139.49+$188.80
  6. Manhattan, NY · New York$1,247.58+$296.89
  7. Alaska · Alaska$1,216.68+$265.99

Other areas in Mississippi first, then benchmark localities. Bars start at $0.

Every other payment area

37291 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$954.28$269.52
ArkansasArkansas$938.96$266.72
ArizonaArizona$1,043.80$285.48
Bakersfield, CACalifornia$1,140.08$282.37
Chico, CACalifornia$1,136.36$278.64
El Centro, CACalifornia$1,136.58$278.87
Fresno, CACalifornia$1,136.36$278.64
Hanford, CACalifornia$1,136.36$278.64

37291 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.

$938.96

$1,287.16

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

View every state and territory as a table
37291 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,216.681
AL$954.281
AR$938.961
AZ$1,043.801
CA$1,136.36–$1,437.9529
CO$1,120.291
CT$1,151.951
DC$1,237.101
DE$1,062.281
FL$1,062.40–$1,177.803
GA$996.33–$1,098.242
GU$1,167.951
HI$1,167.951
IA$979.191
ID$986.681
IL$1,030.14–$1,139.494
IN$992.961
KS$975.071
KY$981.401
LA$980.08–$1,033.662
MA$1,112.93–$1,237.232
MD$1,083.74–$1,237.103
ME$993.40–$1,051.552
MI$1,010.57–$1,077.982
MN$1,067.351
MO$962.10–$1,036.563
MS$950.691
MT$1,075.421
NC$1,004.741
ND$1,048.721
NE$984.841
NH$1,103.221
NJ$1,163.39–$1,222.382
NM$1,017.071
NV$1,068.791
NY$1,021.45–$1,281.765
OH$1,005.111
OK$978.431
OR$1,058.86–$1,157.722
PA$1,006.34–$1,121.472
PR$1,083.781
RI$1,101.601
SC$1,006.931
SD$1,045.571
TN$980.621
TX$999.11–$1,117.978
UT$1,022.111
VA$1,048.43–$1,237.102
VI$1,083.781
VT$1,045.101
WA$1,110.66–$1,262.732
WI$1,010.151
WV$988.401
WY$1,063.791

See 37291 in every payment locality

How the 37291 rate is calculated

Each of 37291’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 · 37291

RVUs × geographic indexes × conversion factor

Office or facility?

Work6.50

6.50 RVUs× 1.000 GPCI

Practice expense24.35

24.35 RVUs× 1.000 GPCI

Malpractice1.35

1.35 RVUs× 1.000 GPCI

Adjusted RVUs

32.2000

Conversion factor

$33.4009

Medicare rate

$1,075.51

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

The exact Mississippi inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

4,651

Code
37291
Physician work
6.50
Practice expense
24.35
Malpractice
1.35

GPCI2026.csv

67

Locality
Mississippi
Physician work
1.000
Practice expense
0.861
Malpractice
0.739
Office calculation for 37291 in Mississippi
ComponentRVULocality factorAdjusted
Physician work6.50× 1.0006.5000
Practice expense24.35× 0.86120.9654
Malpractice1.35× 0.7390.9977
Total RVUs28.4630
Conversion factor× 33.4009

Office rate, Mississippi$950.69

Office: (6.5 × 1 + 24.35 × 0.861 + 1.35 × 0.739) × $33.4009 = $950.69

Facility: (6.5 × 1 + 0.92 × 0.861 + 1.35 × 0.739) × $33.4009 = $276.89

Open 37291 in the RVU calculator

Payment rules and modifiers for 37291

The CMS indicators that decide how 37291 is paid alongside other services.

CMS payment indicators · 37291

Atherectomy, 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

37291 without 50 · national office

$1,075.51

Atherectomy, complex, each additional vessel

37291-50 · Bilateral: 150%

$1,613.27

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

How 37291 has changed in Mississippi

37291 · Office / nonfacility

$950.69

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release
  1. January 1, 2026

    RVU26A

    No ratechanged to$950.69

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2013

    RVU13AR

    Earliest loaded release: No rate

    Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1, RVU18B, RVU18C, RVU18D, RVU19A, RVU19B, RVU19C, RVU19D, RVU20A, RVU20B, RVU20C, RVU20D, RVU21A, RVU21B, RVU21C, RVU21D, RVU22A, RVU22B, RVU22C, RVU22D, RVU23A, RVU23B, RVU23C, RVU23D, RVU24A, RVU24AR, RVU24B, RVU24C, RVU24D, RVU25A, RVU25B, RVU25C, RVU25D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$950.69$276.89RVU26D
2026-07-01$950.69$276.89RVU26C
2026-04-01$950.69$276.89RVU26B
2026-01-01$950.69$276.89RVU26A
2025-10-01Not in this releaseNot in this releaseRVU25D
2025-07-01Not in this releaseNot in this releaseRVU25C
2025-04-01Not in this releaseNot in this releaseRVU25B
2025-01-01Not in this releaseNot in this releaseRVU25A
2024-10-01Not in this releaseNot in this releaseRVU24D
2024-07-01Not in this releaseNot in this releaseRVU24C
2024-04-01Not in this releaseNot in this releaseRVU24B
2024-03-09Not in this releaseNot in this releaseRVU24AR
2024-01-01Not in this releaseNot in this releaseRVU24A
2023-10-01Not in this releaseNot in this releaseRVU23D
2023-07-01Not in this releaseNot in this releaseRVU23C
2023-04-01Not in this releaseNot in this releaseRVU23B
2023-01-01Not in this releaseNot in this releaseRVU23A
2022-10-01Not in this releaseNot in this releaseRVU22D
2022-07-01Not in this releaseNot in this releaseRVU22C
2022-04-01Not in this releaseNot in this releaseRVU22B
2022-01-01Not in this releaseNot in this releaseRVU22A
2021-10-01Not in this releaseNot in this releaseRVU21D
2021-07-01Not in this releaseNot in this releaseRVU21C
2021-04-01Not in this releaseNot in this releaseRVU21B
2021-01-01Not in this releaseNot in this releaseRVU21A
2020-10-01Not in this releaseNot in this releaseRVU20D
2020-07-01Not in this releaseNot in this releaseRVU20C
2020-04-01Not in this releaseNot in this releaseRVU20B
2020-01-01Not in this releaseNot in this releaseRVU20A
2019-10-01Not in this releaseNot in this releaseRVU19D
2019-07-01Not in this releaseNot in this releaseRVU19C
2019-04-01Not in this releaseNot in this releaseRVU19B
2019-01-01Not in this releaseNot in this releaseRVU19A
2018-10-01Not in this releaseNot in this releaseRVU18D
2018-07-01Not in this releaseNot in this releaseRVU18C
2018-04-01Not in this releaseNot in this releaseRVU18B
2018-01-01Not in this releaseNot in this releaseRVU18AR1
2017-10-01Not in this releaseNot in this releaseRVU17D
2017-07-01Not in this releaseNot in this releaseRVU17C
2017-04-01Not in this releaseNot in this releaseRVU17B
2017-01-01Not in this releaseNot in this releaseRVU17A
2016-10-01Not in this releaseNot in this releaseRVU16D
2016-07-01Not in this releaseNot in this releaseRVU16C
2016-04-01Not in this releaseNot in this releaseRVU16B
2016-01-01Not in this releaseNot in this releaseRVU16A
2015-10-01Not in this releaseNot in this releaseRVU15D
2015-07-01Not in this releaseNot in this releaseRVU15C
2015-04-01Not in this releaseNot in this releaseRVU15B
2015-01-01Not in this releaseNot in this releaseRVU15A
2014-10-01Not in this releaseNot in this releaseRVU14D
2014-07-01Not in this releaseNot in this releaseRVU14C
2014-04-01Not in this releaseNot in this releaseRVU14B
2014-01-01Not in this releaseNot in this releaseRVU14A
2013-10-01Not in this releaseNot in this releaseRVU13D
2013-07-01Not in this releaseNot in this releaseRVU13C
2013-04-01Not in this releaseNot in this releaseRVU13B
2013-01-01Not in this releaseNot in this releaseRVU13AR

Price 37291 for an earlier date of service

Where the Mississippi rate applies

Mississippi is a Medicare payment area, not a city. Our Census mapping connects it to 427 cities and communities in Mississippi. Some span more than one payment area; confirm with the service ZIP.

  • Abbeville
  • Aberdeen
  • Ackerman
  • Agricola
  • Alcorn State University
  • Algoma
  • Alligator
  • Amory

Browse all communities in Mississippi

37291 billing questions

When is 37291 used instead of 37290?

Use 37290 for the first vessel treated with complex atherectomy. Report 37291 for each additional qualifying vessel in the complex category.

Can 37291 be billed by itself?

No. It is an add-on code and must be reported with an appropriate primary procedure, such as 37290.

Is angioplasty separately reported in the atherectomy vessel?

Angioplasty associated with atherectomy in that vessel is included in the revascularization service; 37291 represents the additional-vessel atherectomy service.

What documentation supports the complex additional-vessel service?

Document the treated tibial or peroneal vessel, the lesion characteristics supporting complex classification, and the atherectomy performed.

How does CMS handle bilateral reporting?

For a bilateral procedure reported with modifier 50, CMS pays 150%. The add-on code must still be reported with its primary procedure.

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 37291PPRRVU2026_Oct_nonQPP.csv, line 4,651 (RVU26D)
Geographic factors for MississippiGPCI2026.csv, line 67 (RVU26D)

Open CMS sourceHow we calculate rates

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