Summary & Overview
CPT 33957: Percutaneous Cannula Repositioning for Pediatric Extracorporeal Circulation
CPT code 33957 identifies the percutaneous repositioning of a peripheral cannula to provide extracorporeal circulation in children from birth through five years, performed with fluoroscopic guidance. This procedure is significant in pediatric cardiac and critical care settings where vascular access for extracorporeal support requires image-guided adjustment. Nationally, the code matters for coverage determinations, facility resource planning, and aligning pediatric procedural coding with clinical practice.
Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for the procedure, typical sites of service, and the payer landscape relevant to billing and authorization workflows. The publication also outlines common modifiers associated with procedural reporting, situates the code within pediatric extracorporeal support services, and highlights areas where policy updates or payer-specific documentation requirements can affect claim adjudication.
The material is intended for billing managers, coding professionals, and clinical administrators seeking clear, practice-oriented information on CPT code 33957, including benchmarking considerations and policy-relevant points that influence reimbursement and preauthorization across major national payers.
Billing Code Overview
CPT code 33957 describes the percutaneous repositioning of a peripheral cannula to establish extracorporeal circulation in a pediatric patient from birth through five years of age. The procedure is performed through a percutaneous incision and includes the use of fluoroscopic guidance.
-
Service type: Percutaneous cannula repositioning for extracorporeal circulation
-
Typical site of service: Operating room or interventional radiology suite with fluoroscopic capability
Clinical & Coding Specifications
Clinical Context
A 9-month-old infant with congenital heart disease requires extracorporeal membrane oxygenation (ECMO) support due to postoperative cardiac failure after corrective intracardiac surgery. During cannulation, a peripheral cannula placed via a percutaneous incision becomes malpositioned and requires repositioning under fluoroscopic guidance to restore adequate extracorporeal circulation. The procedure is performed in an operating room or interventional radiology suite equipped for pediatric fluoroscopy. The interprofessional workflow includes pediatric cardiothoracic surgical team assessment, pediatric anesthesia for airway and hemodynamic management, fluoroscopy technologist support, and perfusionist management of the ECMO circuit. Pre-procedure steps include confirmatory imaging review and heparinization as indicated; intra-procedure steps include brief fluoroscopic localization, percutaneous incision dilation as needed, cannula manipulation or exchange to achieve optimal position, securement, and verification of flow; post-procedure steps include hemostasis, circuit function monitoring, and documentation of cannula location and fluoroscopic images in the medical record.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Patient died before discharge (physician reporting) | Use when the patient expires during the same hospital admission and this procedure is reported by the attending physician responsible for the care. |