CPT 36479 Reimbursement & Benchmarks | OpenPayer

Summary & Overview

CPT 36479: Endovenous Laser Ablation, Additional Vein

Headline: CPT code 36479: Add-on Endovenous Laser Ablation for Additional Veins

Lead: CPT code 36479 designates an add-on endovenous laser ablation procedure used when a provider ablates additional diseased veins in the same extremity during the same session as an initial vein ablation. As an add-on code, it captures incremental work and resources when multiple venous segments are treated in one encounter.

CPT code 36479 is nationally relevant because venous ablation is a common, minimally invasive option for symptomatic varicose and other diseased peripheral veins; accurate coding affects billing clarity, clinical documentation, and payment for additional treated veins. Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare.

Readers will learn the clinical context and service setting for the code, typical sites of service, common billing modifiers and code usage considerations, and where CPT code 36479 fits alongside primary ablation codes. The publication provides benchmarks and policy-oriented observations about add-on procedural reporting, payer coverage patterns, and potential documentation elements that support correct use. Data not available in the input is noted where applicable.

AetnaBlue Cross Blue ShieldCignaUnitedHealthcareMedicare36479CPTendovenous laser ablationvenous ablationadd-on procedurevascular surgeryoutpatient surgeryprocedure coding

Billing Code Overview

CPT code 36479 is an add-on endovenous laser ablation procedure in which the provider inserts a specially designed laser ablation catheter probe through the skin to destroy the wall of a diseased vein in a single extremity. This code describes an add-on action performed to ablate subsequent veins during the same session as the initial vein ablation.

Service type: Endovenous laser ablation (add-on procedure) for treatment of diseased peripheral veins
Typical site of service: Ambulatory surgical center or hospital outpatient setting; may also be performed in office-based settings with appropriate equipment and staffing

Clinical & Coding Specifications

Clinical Context

A 52-year-old ambulatory patient presents to an outpatient vascular clinic with symptomatic varicose veins and clinical evidence of reflux in the great saphenous vein (GSV) of the left lower extremity. After duplex ultrasound mapping confirms reflux and identifies additional incompetent accessory or tributary veins in the same extremity, the vascular specialist schedules endovenous laser ablation (EVLA) under local tumescent anesthesia. During the planned session, the provider performs ablation of the primary GSV and, using the same percutaneous access and laser ablation catheter system, proceeds to ablate one or more additional diseased veins in the same extremity during the same operative encounter. The patient is monitored in a procedure room or ambulatory surgery center, receives post-procedure duplex confirmation of occlusion, and is discharged the same day with compression instructions.

Coding Specifications

Modifier	Description	When to Use
`59`	Distinct procedural service	Use when a separate, distinct endovascular procedure is performed that is not normally bundled with the primary ablation and documentation supports distinct procedural elements.

62 | Two surgeons | Use when two surgeons from different specialties share responsibility for the procedure and both perform substantial portions.

| Data not available in the input. | Data not available in the input.

CPT 36476: Endovenous Radiofrequency Ablation, Additional Vein

CPT-36474-MECHANOCHEMICAL-ABLATION-ADDITIONAL-VARICOSE-VEIN

CPT 36474: Mechanochemical Ablation of Additional Incompetent Vein(s)

CPT-36478-ENDOVENOUS-LASER-ABLATION-FIRST-VEIN

CPT 36478: Endovenous Laser Ablation of First Diseased Vein

CPT-36483-ADD-ON-CHEMICAL-ADHESIVE-ABLATION-EXTREMITY

CPT 36483: Add-On Chemical Adhesive Ablation of Subsequent Extremity Veins

CPT-36473-MECHANOCHEMICAL-ABLATION-FIRST-VEIN-VARICOSE-VEIN-TREATMENT

CPT 36473: Image-Guided Mechanochemical Ablation for Varicose Vein, First Vein

CPT-36475-ENDOVENOUS-RADIOFREQUENCY-ABLATION-VEIN-DESTRUCTION-EXTREMITY

CPT 36475: Endovenous Radiofrequency Ablation of Extremity Vein

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Taxonomy Code	Specialty	Notes
`207VP0201X`	Vascular Surgery	Common specialty performing endovenous thermal ablation procedures.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I83.11`	Varicose veins of left lower extremity with ulcer of thigh	Chronic venous insufficiency and varicosities are common indications for endovenous ablation; presence of ulceration indicates advanced disease that may prompt intervention.

I83.10 | Varicose veins of unspecified lower extremity with ulcer | Varicose veins with ulceration on the extremity requiring treatment to address venous hypertension.

I83.219 | Varicose veins of unspecified lower extremity with inflammation | Inflammation or phlebitis of varicose veins can be an indication for definitive ablation when conservative care fails.

I87.2 | Venous insufficiency (chronic) (peripheral) | Chronic venous insufficiency with symptomatic reflux commonly treated with EVLA.

I83.90 | Varicose veins of lower extremity without ulcer or inflammation | Symptomatic varicose veins without skin breakdown are a frequent indication for endovenous treatment.

L97.909 | Non-pressure chronic ulcer of unspecified part of unspecified lower leg with unspecified severity | Venous ulcers of the lower leg may be part of the clinical picture prompting ablation to treat underlying venous hypertension.

R22.41 | Localized swelling, mass and lump, left lower limb | Leg swelling related to venous reflux may be part of the presenting symptoms leading to ablation therapy.

R53.1 | Weakness | Non-specific, may be present but not a primary indication; included rarely in comorbidity coding when relevant to perioperative assessment.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`36478`	Endovenous ablation therapy of incompetent vein, extremity, inclusive of all imaging and monitoring; laser, first vein treated	This is the primary procedure code for endovenous laser ablation of the initial diseased vein in the extremity; `36479` is an add-on code for subsequent veins in the same session.

36482 | Endovenous ablation therapy of incompetent vein, extremity, inclusive of all imaging and monitoring; radiofrequency, first vein treated | Alternative primary ablation technique; relevant when radiofrequency rather than laser is used for the first vein.

36483 | Endovenous ablation therapy of incompetent vein, extremity, inclusive of all imaging and monitoring; radiofrequency, each additional vein treated (add-on) | Analogous add-on code when radiofrequency ablation is used for subsequent veins instead of laser.

93970 | Duplex scan of extremity veins including responses to compression and mapping for treatment planning | Pre- and post-procedure duplex ultrasound mapping and confirmation commonly performed to plan and document successful ablation.

99024 | Postoperative follow-up visit global period, related to surgical procedure | Used for routine post-procedure global period visits when administrative coding requires reporting (payer-dependent).

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