CPT code 37270: Arterial stenting, complex, each additional vessel2026 Medicare rate & RVUs in California

Medicare pays $3,795.69–$4,949.10 for 37270 in the office in California, from Chico, CA to San Benito County, CA. 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.

What 37270 covers

This add-on service represents stent treatment of an additional vessel in the femoral-popliteal territory when the intervention meets CPT’s complex criteria. Vascular surgeons, interventional radiologists, and interventional cardiologists may perform it in a catheterization or angiography suite for lower-extremity arterial disease. The code distinguishes the additional treated vessel from the first vessel and from simpler interventions; the record should identify the vessel treated, the stent procedure, and the facts supporting complex classification.

Report 37270 with the applicable primary procedure for the first complex stented vessel, such as 37269, and count each additional qualifying vessel rather than each stent. The code is an add-on and is paid within the primary procedure’s global period. For bilateral procedures reported with modifier 50, CMS pays this code at 150%. When atherectomy is also performed in the same vessel, use the applicable combination code rather than reporting this stent-only code with a separate atherectomy code for that vessel.

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 37270 pays more and less in California

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

29 of 29 payment localities

How the 37270 rate is calculated

Each of 37270’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.

Payment rules and modifiers for 37270

The CMS indicators that decide how 37270 is paid alongside other services.

What modifiers do to the payment

When to use modifier 50

37270 compared with similar codes

How to choose

37269Arterial stentingComplex lesion, initial vessel

This is the first-vessel code for complex femoral-popliteal stenting. Use 37270 for additional qualifying vessels in the same treatment.

37268Arterial stentEach additional vessel

Both codes concern additional-vessel stenting, but 37268 is for simple treatment and 37270 is for treatment meeting complex criteria.

37278Stent and atherectomyComplex, each additional artery

37278 represents complex stenting with atherectomy in an additional vessel; 37270 represents complex stenting without that combination.

37266AngioplastyComplex, each additional vessel

37266 is for complex angioplasty of an additional vessel without stent treatment. Use 37270 when the qualifying additional vessel receives a stent.

Codes related to 37270

Related codes aren’t interchangeable: bill the code that matches the service performed.

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

Open CMS sourceHow we calculate rates