CPT code 37278: Stent and atherectomy, complex, each additional artery2026 Medicare rate & RVUs

Medicare pays $3,874.17 for 37278 nationally in the office and $270.88 in a hospital or facility. Local office rates run $3,340.66–$5,479.17.

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

What 37278 covers

This add-on represents treatment of an additional femoral or popliteal artery with both atherectomy and stent placement when the intervention meets the complex classification. The service is typically performed by an interventional radiologist, vascular surgeon, or other physician qualified to perform endovascular lower-extremity revascularization in an angiography suite or operating room. Code selection follows the treated arterial territory, the intervention performed, whether the artery is classified as complex, and whether it is the first or an additional artery treated.

Report this code with the applicable primary revascularization code; 37277 represents the first complex femoral-popliteal artery treated with stenting and atherectomy. The operative report should identify each treated artery, the intervention performed, and the basis for complex classification. CMS treats this as an add-on paid within the primary procedure’s global period. When the procedure is bilateral and modifier 50 is reported, 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 37278 pays more and less

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

109 of 109 payment localities

37278 rates by state

Office rate range in each state. Select a state to see its payment localities.

How the 37278 rate is calculated

Each of 37278’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 37278

The CMS indicators that decide how 37278 is paid alongside other services.

What modifiers do to the payment

When to use modifier 50

37278 compared with similar codes

How to choose

37277Peripheral revascularizationComplex, initial vessel

37277 reports the first complex femoral-popliteal artery treated with stenting and atherectomy; 37278 reports each additional artery treated with that combination.

37276Peripheral revascularizationSimple, each additional vessel

Both codes address additional arteries treated with stenting and atherectomy, but 37276 is for straightforward interventions and 37278 is for complex interventions.

37274AtherectomyComplex, additional vessel

37274 is for complex atherectomy in an additional femoral-popliteal artery without the stent-and-atherectomy combination represented by 37278.

37270Arterial stentingComplex, each additional vessel

37270 is for complex stenting in an additional femoral-popliteal artery without the stent-and-atherectomy combination represented by 37278.

Codes related to 37278

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