Billing code 37299: Lithotripsy angioplastyMedicare rate & RVUs in Florida
Reports complex endovascular treatment of an additional inframalleolar vessel using intravascular lithotripsy with angioplasty for lower-extremity revascularization.
Medicare pays $885.85–$981.65 for 37299 in the office in Florida, from Rest Of Florida to Miami. Which amount applies depends on the service address.
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 9 sections
What 37299 covers
This add-on describes treatment of an additional vessel below the ankle during lower-extremity revascularization. Intravascular lithotripsy uses a catheter to modify calcified plaque, followed by balloon angioplasty to improve vessel flow. Vascular surgeons, interventional radiologists, and interventional cardiologists may perform the service in a hospital or outpatient procedural setting. Examples of inframalleolar vessels include pedal and plantar arteries.
Report this code only with an eligible primary procedure, typically 37298 for complex angioplasty of the first inframalleolar vessel. Use the complex category according to the applicable billing code lesion classification; document the treated vessel, lesion, lithotripsy and angioplasty performed, and that it is an additional vessel. CMS pays the add-on within the primary procedure's global period. For a bilateral procedure reported with modifier 50, CMS pays 150% of the applicable amount.
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 37299 pays more and less in Florida
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
3 payment localities
$885.85 to $981.65
| Payment locality | Office | Facility |
|---|---|---|
| Fort Lauderdale | $936.41 | $252.94 |
| Miami | $981.65 | $279.29 |
| Rest Of Florida | $885.85 | $240.84 |
How the 37299 rate is calculated
Each of 37299’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 · 37299
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 5.00Practice expense 20.83Malpractice 1.07
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 37299
The CMS indicators that decide how 37299 is paid alongside other services.
CMS payment indicators · 37299
Lithotripsy angioplasty
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 1 | Bilateral with modifier 50 pays 150% of the fee schedule amount. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
What modifiers do to the payment
Modifier 50 · payment effect
With and without the modifier
37299 without 50 · national office
$898.48
Lithotripsy angioplasty
37299-50 · Bilateral: 150%
$1,347.72
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).
37299 compared with similar codes
Compare codes
37299 vs 37298 vs 37297 vs 37283: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 37298Foot artery angioplasty
- 37298 reports complex angioplasty of the first inframalleolar vessel; 37299 is the add-on for each additional vessel in that category.
- 37297Vascular lithotripsy
- 37297 covers each additional inframalleolar vessel when the intervention is classified as simple. Use 37299 when the applicable billing code classification is complex.
- 37283Angioplasty
- 37283 is for an additional tibial/peroneal vessel in the complex category. Use 37299 for an additional vessel in the inframalleolar territory.
37299 billing questions
What primary code is commonly paired with 37299?
For complex angioplasty of the first inframalleolar vessel, pair it with 37298. Code 37299 represents an additional vessel and is not reported by itself.
How is 37299 different from 37297?
Both describe treatment of an additional inframalleolar vessel, but 37297 is for the simple category and 37299 is for the complex category.
What supports reporting an additional-vessel unit?
Document the distinct inframalleolar vessel treated, its lesion, and the intravascular lithotripsy and angioplasty performed. The code is for each additional vessel, not each device or balloon.
Can 37299 be reported for tibial or peroneal arteries?
No. This code is for the inframalleolar territory; tibial and peroneal interventions use the applicable tibial/peroneal territory codes.
How does CMS handle bilateral reporting?
For a bilateral procedure reported with modifier 50, CMS pays 150% of the applicable amount. The code remains an add-on and must be reported with a 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
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