Summary & Overview
CPT 37296: Inframalleolar Angioplasty (Dorsalis Pedis/Plantar)
CPT code 37296 represents angioplasty (balloon dilation) for a straightforward stenosis in a first-time inframalleolar vessel, including the dorsalis pedis and plantar arteries. This interventional peripheral vascular procedure is important nationally because it addresses critical limb ischemia and distal peripheral arterial disease, procedures that affect limb salvage, patient mobility, and downstream healthcare utilization. The code bundles access, catheterization, lesion crossing, and imaging guidance required to complete the procedure.
Key payers covered in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for inframalleolar angioplasty, expected sites of service, and the operational scope of CPT code 37296. The publication also outlines typical benchmarks for utilization and reimbursement patterns, recent policy updates affecting coverage and coding practice, and considerations for documentation and billing workflows tied to procedural components. This summary is intended for clinicians, coding professionals, and policy analysts seeking concise, nationally focused information on billing and clinical context for inframalleolar angioplasty services.
Billing Code Overview
CPT code 37296 describes percutaneous or open angioplasty (balloon dilation) of a straightforward stenotic lesion in an initial inframalleolar vessel, such as the dorsalis pedis or plantar arteries. The service includes all necessary vascular access, catheterization, lesion crossing, and imaging guidance required to complete the procedure.
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Service type: Endovascular/interventional peripheral angioplasty for inframalleolar (foot) arterial lesions
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Typical site of service: Hospital outpatient department or ambulatory surgical center; procedures may also occur in inpatient interventional suites depending on clinical context
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Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with diabetes mellitus and peripheral arterial disease presents with worsening rest pain and nonhealing plantar ulceration of the forefoot. Noninvasive vascular testing (ABI, toe pressures, and duplex ultrasound) demonstrates reduced perfusion to the foot with a focal inframalleolar stenosis involving the dorsalis pedis artery. The vascular interventionalist schedules an endovascular procedure under monitored anesthesia care. In the angiography suite, vascular access is obtained (commonly via femoral or pedal access), catheters are advanced into the tibial and inframalleolar vessels, and digital subtraction angiography localizes a straightforward focal stenotic lesion in the dorsalis pedis/plantar artery. The provider performs balloon angioplasty of the inframalleolar target using appropriate balloon sizing and imaging guidance until adequate luminal gain and distal perfusion are achieved. The service includes all access, catheterization, lesion crossing, and imaging required to complete the angioplasty. Post-procedure imaging confirms improved flow to the foot; hemostasis is achieved and the patient is observed for access-site complications and limb perfusion before discharge or admission for further wound care.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When reporting only the physician’s interpretation component separate from technical services (rare for endovascular angioplasty billed by the operator). |