CPT code 64659 identifies the surgical removal of the pulse generator for a baroreflex activation therapy (BAT) system. As BAT devices are used in selected patients with resistant hypertension or heart failure in specialized care pathways, the code captures a targeted device-explant procedure distinct from lead or system removals. Nationally, accurate coding for device explantation affects device lifecycle tracking, claims adjudication, and payment classification for surgical device management.

Key payers considered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of clinical scope and service context for CPT code 64659, typical sites of service, and what elements payers commonly evaluate for device explantation claims. The publication also provides benchmarking and policy-focused content where available, including common billing pitfalls, coding notes, and payer policy trends relevant to device removal procedures. Clinical context addresses when pulse generator explantation is performed and how it differs from complete system or lead removals.

This summary is written for a national audience and is intended to orient clinicians, coding professionals, and policy analysts to the code’s purpose, typical use cases, and areas where documentation and coding clarity matter for claims processing.