CPT code 56640 represents a radical vulvectomy, a major oncologic surgical procedure that removes all or part of the vulva and includes regional lymph node dissection (inguinofemoral, iliac, and pelvic nodes). As definitive surgical management for vulvar malignancy, this code captures high-complexity care with significant implications for hospital resource use, perioperative planning, and postoperative follow-up. Nationally, use of this code signals management of invasive vulvar cancer and contributes to procedure-level volume and cost assessments for gynecologic oncology.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides a consolidated view of coding context, payer coverage patterns, and clinical setting considerations relevant to these national payers.

Readers will learn: the clinical scope and service setting for CPT code 56640; benchmark considerations for major vulvar oncology surgery; common billing modifiers and procedural context where available; and areas where input data are not provided. This summary supports coding accuracy, administrative planning, and payer-contracted policy review for institutions and clinicians managing vulvar cancer nationally.