CPT 37277 Reimbursement & Policy Benchmarks

Headline: New Focus on Complex Peripheral Interventions — CPT code 37277 Clarified

Lead: CPT code 37277 identifies a bundled peripheral arterial procedure: atherectomy with stent placement, often accompanied by angioplasty, for complex occlusive lesions in the femoral-popliteal segment. The code covers all access, catheter maneuvers, lesion crossing, and imaging guidance and applies to initial-vessel interventions performed by open or percutaneous approaches.

What this code represents and why it matters: CPT code 37277 captures high-complexity peripheral vascular interventions addressing complete occlusions in major vessels supplying the lower extremity. As peripheral artery disease prevalence and endovascular treatment options expand nationally, this code is central to billing for advanced limb-salvage and revascularization procedures and has implications for facility use, provider service lines, and payer policy.

Key payers covered: Analysis includes national commercial and public payers: Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

What readers will learn: The publication provides benchmarks for utilization and reimbursement patterns, reviews current payer coverage trends and prior authorization considerations, summarizes clinical context and typical settings of care, and lists related service and billing considerations. Operationally, readers will find guidance on coding scope, common billing scenarios, and where to look for policy updates.

Scope: National audience; content focuses on clinical and billing description, payer coverage landscape, and elements that affect coding and facility classification.

Billing Code Overview

CPT code 37277 describes a combined endovascular procedure that includes atherectomy with stent placement, and may include angioplasty, for a complex occlusive lesion in an initial vessel of the femoral and popliteal vascular territory. The territory covers the common femoral/profunda femoris and the superficial femoral/popliteal arteries. The service encompasses all access, catheterization, lesion crossing, and imaging guidance. The approach may be open or percutaneous.

Service type: Endovascular peripheral arterial intervention with atherectomy and stent deployment.

Typical site of service: Hospital outpatient department or ambulatory surgical center; can also occur in an inpatient setting depending on clinical context and access approach.

Data not available in the input.

Clinical Context

A 72-year-old man with long-standing peripheral artery disease, tobacco use disorder, and poorly controlled diabetes presents with resting right lower extremity pain and non-healing ulceration of the distal foot. Noninvasive vascular testing demonstrates an occlusion of the superficial femoral artery with diminished distal pulses and tissue perfusion. After shared decision-making, the vascular surgery/interventional radiology team schedules an endovascular revascularization of the femoral-popliteal segment. In the angiography suite the patient undergoes ultrasound-guided arterial access, diagnostic angiography confirming a chronic total occlusion of the superficial femoral artery, atherectomy to debulk plaque, adjunctive balloon angioplasty as needed, and deployment of one or more stents to restore luminal patency. The service includes all access, catheterization, lesion crossing, lesion preparation, stent deployment, and intraprocedural imaging. The typical workflow includes pre-procedure consent and optimization, procedural vascular access (percutaneous or open), use of imaging guidance (fluoroscopy), intraprocedural heparinization, device exchanges and adjunctive therapies, completion angiography, and post-procedure monitoring for access site complications and limb perfusion.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing separately for the physician's interpretation or professional portion of imaging if the facility bills the technical component.

Taxonomy Code	Specialty	Notes
`2080S00000X`	Vascular Surgery	Primary operators for complex femoral-popliteal endovascular interventions.
`208VP0012X`	Interventional Cardiology	Interventional cardiologists with peripheral endovascular expertise often perform femoropopliteal interventions.
`207P00000X`	Diagnostic Radiology	Interventional radiologists perform percutaneous vascular interventions and image guidance.
`363A00000X`	Interventional Radiology (Vascular & Interventional Radiology)	Proceduralists specializing in vascular interventions and atherectomy/stenting.
`208000000X`	General Surgery	General surgeons with vascular training may perform open or hybrid approaches in this territory.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I70.213`	Atherosclerosis of native arteries of right leg with ulceration	Common indication for femoral-popliteal revascularization to improve perfusion and heal ulcers.
`I70.214`	Atherosclerosis of native arteries of left leg with ulceration	Same clinical relevance for left-sided disease requiring intervention.
`I70.23`	Atherosclerosis of native arteries of bilateral legs with ulceration	Indicates bilateral limb disease which may necessitate staged or bilateral procedures.
`I70.201`	Atherosclerosis of native arteries of right leg without claudication	May represent significant occlusive disease discovered incidentally or with rest pain requiring intervention.
`I70.202`	Atherosclerosis of native arteries of left leg without claudication	As above for left leg disease.
`I70.31`	Atherosclerosis of bypass graft of the leg with ulceration	Relevant when prior bypass grafts have failed and endovascular recanalization with stent placement is considered.
`I74.3`	Embolism and thrombosis of arteries of lower extremities	Acute thrombotic events may coexist and require adjunctive thrombectomy or thrombolysis with revascularization.
`I96`	Gangrene, not elsewhere classified	Advanced ischemia/gangrene is an indication for urgent revascularization to attempt limb salvage prior to amputation.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`37235`	Transcatheter placement of intravascular stent(s), open or percutaneous, iliac artery	May be used when stenting extends proximally into the iliac segment in the same session; distinct anatomic territory.
`37236`	Transcatheter placement of intravascular stent(s), open or percutaneous, each additional distinct arterial family (e.g., femoral, tibial)	Used for additional stent placement in a separate arterial family during the same session when not included in the primary code.
`37238`	Transcatheter placement of intravascular stent(s), peripheral, other than iliac, each additional vessel	Used for additional vessel stent placement in peripheral arteries beyond the initial vessel treated with `37277`.
`37246`	Revascularization, endovascular, open or percutaneous, tibial/peroneal vessel(s) — atherectomy, laser or mechanical	May be performed in the same limb for more distal disease requiring atherectomy in tibial vessels.
`35476`	Thromboembolectomy, lower extremity, percutaneous mechanical	Performed when thrombotic occlusion requires separate mechanical thrombectomy adjunctive to plaque removal.
`76001`	Fluoroscopy; remote or with feedback, medical procedure	Imaging codes for additional fluoroscopic guidance not bundled with primary service when billed separately under payer rules.

OpenPayer

Summary & Overview

CPT 37277: Atherectomy and Stent Placement for Femoral–Popliteal Occlusion