CPT 33726 Pulmonary Venous Stenosis Reimbursement

CPT code 33726 denotes the surgical repair of pulmonary venous stenosis, a specialized cardiothoracic operation to relieve narrowing of the veins that return oxygenated blood from the lungs to the heart. This procedure is clinically significant due to its role in restoring pulmonary venous drainage, improving cardiac output, and preventing progressive pulmonary hypertension and heart failure in affected patients. Nationwide, CPT code 33726 captures complex inpatient surgical management within cardiac surgery programs and is relevant for hospital billing, surgical registries, and payer coverage determinations.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise view of what CPT code 33726 represents, the typical service setting, and the clinical context for its use. The publication outlines expected benchmarks for service type and site of care, summarizes common modifiers when available, and highlights policy considerations that affect billing and coverage for high-acuity cardiothoracic procedures. Where input data are incomplete, the report notes that specific fields are not provided.

This summary is intended for a national audience of billing professionals, clinical coders, hospital administrators, and policy analysts seeking an authoritative, practice-focused overview of CPT code 33726 and its role in surgical management of pulmonary venous stenosis.

Billing Code Overview

CPT code 33726 describes the surgical repair of pulmonary venous stenosis, a procedure to correct narrowing of the veins that carry oxygenated blood from the lungs to the heart. The service involves operative intervention on the pulmonary venous structures to restore adequate blood flow to the left atrium and relieve hemodynamic compromise.

Service type: Surgical procedure (cardiothoracic/cardiac surgery)
Typical site of service: Hospital operating room or specialized cardiac surgery center

Clinical Context

A 45-year-old patient with a history of prior left atrial surgery and progressive dyspnea is evaluated for symptomatic pulmonary venous stenosis after imaging with transthoracic and transesophageal echocardiography and CT angiography demonstrates focal narrowing of the left superior pulmonary vein with elevated flow velocities and pulmonary venous hypertension. The multidisciplinary team includes a cardiothoracic surgeon, cardiologist, anesthesiologist, and perfusion services. The patient is admitted to a hospital surgical suite or cardiac operating room for open surgical repair under general endotracheal anesthesia. Preoperative workflow includes informed consent, cross-sectional imaging review, baseline labs, blood typing, and anesthesia evaluation. Intraoperative steps comprise median sternotomy or thoracotomy exposure, cardiopulmonary bypass as indicated, direct visualization of the stenotic pulmonary venous ostium, excision of fibrotic tissue or patch angioplasty, and assessment of pulmonary venous flow. Postoperative care includes intensive care monitoring, hemodynamic assessment, chest tube management, anticoagulation per protocol, and follow-up imaging to confirm patency of the repaired pulmonary vein.

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier (default)	Use when no modifier is applicable and reporting the primary surgical service.

Taxonomy Code	Specialty	Notes
`3336C0002X`	Cardiothoracic Surgery	Thoracic and cardiac surgeons commonly perform pulmonary venous repairs.
`207K00000X`	Pediatric Cardiac Surgery	Pediatric cardiac surgeons manage congenital pulmonary venous stenosis in infants and children.
`207RC0000X`	Adult Cardiac Surgery	Adult cardiac surgeons perform repairs in adult patients with acquired or post-surgical stenosis.
`207L00000X`	Cardiovascular Disease (Cardiology)	Interventional cardiologists and cardiologists participate in diagnosis and perioperative management.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I77.5`	Pulmonary artery aneurysm and pulmonary arteriovenous malformation	Data not available in the input.
`Q26.2`	Congenital stenosis of pulmonary veins	Common congenital cause of pulmonary venous obstruction requiring surgical repair.
`I27.2`	Other secondary pulmonary hypertension	Pulmonary venous stenosis can lead to elevated pulmonary pressures and secondary pulmonary hypertension.
`I50.9`	Heart failure, unspecified	Chronic pulmonary venous obstruction may contribute to heart failure symptoms prompting repair.
`J96.00`	Acute respiratory failure, unspecified whether with hypoxia or hypercapnia	Severe pulmonary venous obstruction can precipitate respiratory compromise in advanced cases.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`00560`	Anesthesia for procedures on heart, pericardial sac, anterior great vessels (not otherwise specified)	Anesthesia code commonly billed for general endotracheal anesthesia during open pulmonary venous repair.
`33999`	Unlisted procedure, heart; by cardiothoracic surgery	May be used for atypical or novel pulmonary venous reconstruction techniques not described by existing codes.
`93580`	Transcatheter placement of intravascular stent(s), pulmonary vein (endovascular)	Alternative or adjunctive endovascular intervention for pulmonary venous stenosis when a transcatheter approach is used instead of open repair.
`33206`	Insertion of temporary transvenous pacing electrode, for intraoperative or postoperative management	May be performed perioperatively if arrhythmia or conduction issues arise during cardiac surgery.
`32820`	Thoracotomy, with exploration, with or without removal of foreign body, with or without repair of lung or pulmonary vasculature	Related thoracic access codes for procedures requiring thoracotomy exposure in select cases.

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Summary & Overview

CPT 33726: Surgical Repair of Pulmonary Venous Stenosis