CPT code 37277: Peripheral revascularization, complex, initial vessel2026 Medicare rate & RVUs in Puerto Rico

Reports complex endovascular treatment of an initial femoral or popliteal artery vessel using both atherectomy and stent placement.

CMS RVU26DEffective Oct 1, 2026One payment locality

In Puerto Rico, Medicare pays $15,582.02 for 37277 in the office and $680.74 when it’s performed in a hospital or facility.

$15,582.02Office (non-facility)
$680.74Hospital or facility
+1.0%vs the national office rate ($15,420.86)

Check a contract rate as a % of Medicare · 37277 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 37277 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Puerto Rico
  2. What 37277 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 37277 covers

This code represents catheter-based revascularization of a femoral or popliteal artery in which the operator performs atherectomy and places a stent in the treated vessel. Balloon angioplasty in that same vessel, when performed, is part of the revascularization service. Vascular surgeons, interventional radiologists, and interventional cardiologists commonly perform these procedures for peripheral arterial disease, including symptomatic limb ischemia, in a hospital or outpatient procedural setting.

Use the complex initial-vessel code when the documentation supports the complex category in the femoropopliteal revascularization family and identifies the treated vessel and both atherectomy and stent placement. The family separates initial-vessel services from services for additional vessels and distinguishes complex from simple procedures. The procedure has a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures occur in one session, the highest-valued procedure is paid in full and the others at 50%. Bilateral reporting with modifier 50 is paid at 150%. Assistant-at-surgery payment requires documented medical necessity; co-surgeons and team surgery are not permitted.

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 Puerto Rico compares for 37277

Across 109 of 109 payment localities, the office rate for 37277 runs from $13,277.98 in Arkansas to $21,967.36 in San Benito County, CA. Puerto Rico pays $15,582.02. The RVUs are the same everywhere; the geographic indexes change the dollars.

37277 in Puerto Rico vs other payment areas
  1. Puerto Rico · this page$15,582.02
  2. Los Angeles, CA · California$18,112.62+$2,530.60
  3. Washington, DC area · District of Columbia$18,096.25+$2,514.23
  4. Miami, FL · Florida$16,202.05+$620.03
  5. Chicago, IL · Illinois$15,645.90+$63.88
  6. Manhattan, NY · New York$17,918.23+$2,336.21
  7. Alaska · Alaska$16,582.62+$1,000.60

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

Every other payment area

37277 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$13,520.69$623.93
ArkansasArkansas$13,277.98$617.05
ArizonaArizona$14,945.48$663.24
Bakersfield, CACalifornia$16,807.22$653.11
Chico, CACalifornia$16,797.90$643.79
El Centro, CACalifornia$16,798.47$644.36
Fresno, CACalifornia$16,797.90$643.79
Hanford, CACalifornia$16,797.90$643.79

37277 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.

$13,277.98

$19,382.63

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

View every state and territory as a table
37277 office rate range by state
State / territoryOffice rate rangeLocalities
AK$16,582.621
AL$13,520.691
AR$13,277.981
AZ$14,945.481
CA$16,797.90–$21,967.3629
CO$16,349.511
CT$16,594.861
DC$18,096.251
DE$15,234.191
FL$14,826.69–$16,202.053
GA$13,843.69–$15,682.152
GU$17,401.331
HI$17,401.331
IA$14,093.681
ID$14,176.361
IL$14,196.87–$15,912.064
IN$14,281.481
KS$13,943.001
KY$13,767.721
LA$13,713.39–$14,562.802
MA$16,190.47–$18,301.232
MD$15,594.20–$18,096.253
ME$14,193.33–$15,245.582
MI$14,147.44–$14,980.792
MN$15,770.051
MO$13,374.68–$14,710.403
MS$13,333.111
MT$15,420.631
NC$14,387.751
ND$15,353.211
NE$14,209.961
NH$16,013.671
NJ$16,814.10–$17,829.122
NM$14,214.861
NV$15,416.651
NY$14,646.74–$18,348.865
OH$14,133.651
OK$13,811.231
OR$15,327.81–$17,043.182
PA$14,200.51–$16,058.912
PR$15,582.021
RI$15,906.681
SC$14,278.521
SD$15,345.231
TN$14,020.791
TX$14,080.24–$16,267.628
UT$14,520.891
VA$15,135.67–$18,096.252
VI$15,582.021
VT$15,216.541
WA$16,184.87–$18,786.022
WI$14,720.191
WV$13,530.371
WY$15,391.251

See 37277 in every payment locality

How the 37277 rate is calculated

Each of 37277’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 · 37277

RVUs × geographic indexes × conversion factor

Office or facility?

Work15.00

15.00 RVUs× 1.000 GPCI

Practice expense443.28

443.28 RVUs× 1.000 GPCI

Malpractice3.41

3.41 RVUs× 1.000 GPCI

Adjusted RVUs

461.6900

Conversion factor

$33.4009

Medicare rate

$15,420.86

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

The exact Puerto Rico inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

4,637

Code
37277
Physician work
15.00
Practice expense
443.28
Malpractice
3.41

GPCI2026.csv

91

Locality
Puerto Rico
Physician work
1.000
Practice expense
1.011
Malpractice
0.985
Office calculation for 37277 in Puerto Rico
ComponentRVULocality factorAdjusted
Physician work15.00× 1.00015.0000
Practice expense443.28× 1.011448.1561
Malpractice3.41× 0.9853.3588
Total RVUs466.5149
Conversion factor× 33.4009

Office rate, Puerto Rico$15582.02

Office: (15 × 1 + 443.28 × 1.011 + 3.41 × 0.985) × $33.4009 = $15582.02

Facility: (15 × 1 + 2 × 1.011 + 3.41 × 0.985) × $33.4009 = $680.74

Open 37277 in the RVU calculator

Payment rules and modifiers for 37277

The CMS indicators that decide how 37277 is paid alongside other services.

CMS payment indicators · 37277

Peripheral revascularization, complex, initial vessel

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
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

37277 without 50 · national office

$15,420.86

Peripheral revascularization, complex, initial vessel

37277-50 · Bilateral: 150%

$23,131.29

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 37277 has changed in Puerto Rico

37277 · Office / nonfacility

$15582.02

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$15582.02

    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$15,582.02$680.74RVU26D
2026-07-01$15,582.02$680.74RVU26C
2026-04-01$15,582.02$680.74RVU26B
2026-01-01$15,582.02$680.74RVU26A
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 37277 for an earlier date of service

Where the Puerto Rico rate applies

Puerto Rico is a Medicare payment area, not a city. Our Census mapping connects it to 292 cities and communities in Puerto Rico. Some span more than one payment area; confirm with the service ZIP.

  • Aceitunas
  • Adjuntas
  • Aguada
  • Aguadilla
  • Aguas Buenas
  • Aguas Claras
  • Aguilita
  • Aibonito

Browse all communities in Puerto Rico

37277 billing questions

How does 37277 differ from 37275?

Both cover femoropopliteal revascularization using stent placement and atherectomy in an initial vessel. 37277 is for the complex category; 37275 is the simple-category counterpart.

When is 37278 used instead?

37278 is the complex combination code for an additional femoropopliteal vessel. Use 37277 for the initial vessel.

Can angioplasty in the treated vessel be reported separately?

Angioplasty performed in the same vessel is included in the revascularization service. The code selection should reflect the documented procedures in that vessel.

What should the procedure note support?

Document the femoral or popliteal target vessel, the procedures performed, and the details supporting the complex category. The note should establish that both atherectomy and stent placement occurred.

How is bilateral treatment reported under the CMS payment rule?

For bilateral procedures, modifier 50 is paid at 150%. The 0-day global period includes same-day preoperative and postoperative care.

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 37277PPRRVU2026_Oct_nonQPP.csv, line 4,637 (RVU26D)
Geographic factors for Puerto RicoGPCI2026.csv, line 91 (RVU26D)

Open CMS sourceHow we calculate rates

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