CPT code 33954 denotes the open surgical insertion of a peripheral cannula for extracorporeal circulation in children aged six years and older. This pediatric cardiothoracic procedure establishes vascular access for cardiopulmonary bypass or other extracorporeal support and is performed in surgical settings such as operating rooms. Nationally, accurate coding for 33954 matters for proper procedure classification, facility billing, and pediatric surgical care reporting.

Key payers addressed in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides an overview of clinical context for the procedure, common payer considerations, and coding benchmarks where available. Readers will find concise guidance on the clinical scope of the code, typical site-of-service implications, and the payer landscape relevant to 33954.

The report summarizes benchmarks and payer coverage patterns when available, notes common modifiers associated with billing workflows, and situates 33954 within pediatric cardiothoracic surgical coding practices. Data not available in the input is identified as such, and the focus remains on national-level policy and billing context rather than state-specific rules.