Billing code 37237: Arterial stentMedicare rate & RVUs

Reports stent placement in each additional qualifying artery during the same session as initial arterial stenting, when treatment extends beyond the first artery.

CMS RVU26DEffective Oct 1, 2026109 payment localities1.4K Medicare services in 2024

Medicare pays $1,216.13 for 37237 nationally in the office and $187.71 in a hospital or facility. Local office rates run $1,052.66–$1,677.48.

Medicare rate · 37237

Arterial stent

Swap in your local Medicare rate.

Work RVUs
4.14
Total RVUs
36.41
Global days
ZZZ

National rate · 2026

$1,216.13

Office setting, before claim adjustments.

See every locality for 37237 → · 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.

On this page 10 sections
  1. Medicare rate
  2. What 37237 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 37237 covers

This add-on captures stent placement in an additional qualifying artery during an open or catheter-based intervention. It applies to arterial sites in the 37236 code family, such as renal or mesenteric arteries; cervical carotid, coronary, pulmonary, lower-extremity, intracranial, and dialysis-circuit stenting follow other code pathways. Interventional radiologists, vascular surgeons, and other physicians performing vascular procedures may place the stent in a hospital or office-based setting.

Report 37237 for each additional artery after reporting 37236 for the initial artery. Count distinct treated arteries, not additional stents or lesions within one artery. The operative report should identify the treated artery and document the approach and stent placement. CMS classifies 37237 as an add-on code: bill it only with a primary procedure, and its payment falls within that procedure’s global period.

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 37237 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

$1052.66 to $1677.48

$1052.66$1365.07$1677.48
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

37237 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$1,071.08$171.21
Alaska*$1,338.16$242.90
Arizona$1,178.94$182.41
Arkansas$1,052.66$169.25
Atlanta$1,239.97$195.10
Austin$1,273.17$185.11
Bakersfield$1,305.96$178.82
Baltimore/Surr. Cntys$1,302.50$199.01
Beaumont$1,119.76$183.90
Brazoria$1,200.48$181.33

37237 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.

$1,052.66

$1,490.37

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

View every state and territory as a table
37237 office rate range by state
State / territoryOffice rate rangeLocalities
AK$1,338.161
AL$1,071.081
AR$1,052.661
AZ$1,178.941
CA$1,303.25–$1,677.4829
CO$1,277.321
CT$1,306.331
DC$1,413.281
DE$1,200.911
FL$1,186.97–$1,310.023
GA$1,109.74–$1,239.972
GU$1,345.151
HI$1,345.151
IA$1,107.211
ID$1,114.971
IL$1,144.06–$1,271.084
IN$1,122.711
KS$1,099.291
KY$1,097.351
LA$1,094.61–$1,159.052
MA$1,266.91–$1,420.742
MD$1,227.30–$1,413.283
ME$1,119.95–$1,194.402
MI$1,129.57–$1,202.482
MN$1,222.901
MO$1,071.12–$1,166.063
MS$1,062.231
MT$1,216.061
NC$1,134.091
ND$1,196.291
NE$1,114.931
NH$1,254.771
NJ$1,320.99–$1,394.222
NM$1,136.151
NV$1,211.591
NY$1,153.98–$1,451.005
OH$1,125.531
OK$1,096.921
OR$1,202.03–$1,325.722
PA$1,128.65–$1,267.882
PR$1,227.111
RI$1,249.611
SC$1,131.741
SD$1,193.951
TN$1,105.621
TX$1,119.76–$1,273.178
UT$1,150.051
VA$1,188.55–$1,413.282
VI$1,227.111
VT$1,189.181
WA$1,265.30–$1,454.022
WI$1,149.151
WV$1,093.701
WY$1,207.441

How the 37237 rate is calculated

Each of 37237’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 · 37237

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 4.14Practice expense 31.27Malpractice 1.00

36.4100 adjusted RVUs×$33.4009 conversion factor=$1,216.13

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 37237

The CMS indicators that decide how 37237 is paid alongside other services.

CMS payment indicators · 37237

Arterial stent

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
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.

37237 compared with similar codes

Compare codes

37237 vs 37236 vs 37239 vs 37238 vs 37215: national Medicare rates

Swap in your local Medicare rate.

  • 37237
    Arterial stent · 4.14 wRVU
    $1,216.13
  • 37236
    Arterial stent · 8.53 wRVU
    $2,599.26+$1,383.13
  • 37239
    Venous stenting · 2.9 wRVU
    $1,659.69+$443.56
  • 37238
    Venous stenting · 5.89 wRVU
    $3,274.62+$2,058.49
  • 37215
    · 17.31 wRVU
    —

How to choose

37236Arterial stent
37236 reports stenting in the initial qualifying artery; 37237 reports each additional qualifying artery treated.
37239Venous stenting
37239 is the add-on for each additional vein, while 37237 is for each additional qualifying artery.
37238Venous stenting
37238 reports stenting in the initial qualifying vein; 37237 applies to an additional qualifying artery.
37215Transcath stent cca w/eps
37215 is the dedicated cervical carotid stenting code when embolic protection is used; 37237 is for additional arteries in its own code family.

37237 billing questions

When should 37237 be used instead of 37236?

Use 37236 for the initial qualifying artery treated and 37237 for each additional qualifying artery treated in the session.

Does another stent in the same artery support 37237?

No. The add-on is based on an additional artery, not the number of stents or lesions treated within one artery.

Can 37237 be billed by itself?

No. It is an add-on code and must be reported with a primary procedure, typically 37236 for the initial artery.

What documentation supports an additional unit?

Document each distinct additional artery treated and the stent placement performed in that artery. The operative report should make clear which artery was the initial vessel and which were additional.

Does 37237 have a separate global period?

CMS states that the add-on is paid within the primary procedure’s global period.

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 37237PPRRVU2026_Oct_nonQPP.csv, line 4,600 (RVU26D)

Open CMS sourceHow we calculate rates

Did this answer your question about what 37237 pays?

Tell us what you were actually trying to work out. We’ll answer you directly, or build the page that does.

Fee sheets

Put 37237 and the rest of your codes on one sheet

Build a fee sheet from your own code list at your locality, put your payer contracts beside Medicare, and see what changed each quarter.

Build my fee sheetOr price your code list free →