Summary & Overview
CPT 93588: Venous Imaging During Cardiac Catheterization
CPT code 93588 covers catheter-based venous imaging performed during the same session as heart catheterization to identify and assess venovenous collaterals originating below the heart in patients with congenital cardiac defects. The code matters nationally because it documents a specific diagnostic technique used to clarify venous anatomy during invasive cardiac evaluation, which can influence subsequent interventions and care planning. Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, typical sites of service, and which payers are relevant to coverage discussions. The publication outlines expected billing practices, common modifiers submitted with the service, and how the code fits within cardiac interventional service lines. It also summarizes where to look for policy and coverage guidance, and highlights implications for claims processing and clinical documentation. Data not available in the input is noted where appropriate for areas such as associated taxonomies, ICD-10 diagnoses, and related codes.
Billing Code Overview
CPT code 93588 describes venous imaging performed during the same session as a heart catheterization to evaluate venovenous collaterals that originate below the heart. This procedure is performed using a catheter to visualize and assess anomalous venous pathways that can affect hemodynamics in patients with congenital heart defects.
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Service type: Diagnostic catheter-based venous imaging performed adjunctively during cardiac catheterization
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Typical site of service: Hospital catheterization laboratory or specialized cardiac catheterization suite
Clinical & Coding Specifications
Clinical Context
A pediatric or adult patient with congenital heart disease undergoes diagnostic or interventional cardiac catheterization for evaluation of intracardiac anatomy or shunt lesions. During the same anesthetized session, the interventional cardiologist advances a catheter into systemic or pulmonary venous pathways to perform selective venography to identify and assess venovenous collateral vessels that originate below the level of the heart. Typical indications include evaluation of unexplained cyanosis, desaturation after Fontan or Glenn procedures, progressive exercise intolerance, or suspected collateral-mediated volume overload. The workflow: the patient is brought to the cardiac catheterization laboratory, monitored and sedated or anesthetized per institutional protocol; baseline hemodynamics and intracardiac pressures are obtained; selective venous catheterization and contrast venography below the heart are performed to map collaterals; findings guide decisions about coil or device embolization during the same session or staged therapy. Typical site of service is an inpatient or outpatient cardiac catheterization laboratory within a hospital or specialized pediatric cardiac center. Typical patient scenario: a 12-year-old post-Fontan patient with resting hypoxemia and decreased exercise tolerance undergoes heart catheterization; during the same session, the cardiologist performs catheter-directed venography below the heart to identify sizable venovenous collaterals contributing to cyanosis and plans transcatheter coil embolization if appropriate.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 |