CPT code 56631 represents a radical vulvectomy with removal of unilateral inguinofemoral lymph nodes performed to treat malignant disease of the vulva. This major gynecologic oncologic procedure can include partial or total vulvar excision and, when necessary, clitoral removal and excision of adjacent tissue to achieve clear margins. The code captures definitive surgical management for a spectrum of vulvar cancers and is relevant for surgical billing, inpatient resource use, and oncology care pathways nationwide.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a national overview of clinical context and service setting for CPT code 56631, plus benchmarking and policy-relevant topics commonly evaluated for major oncologic procedures: typical site-of-service patterns, expected service-level classification, and payer coverage considerations. The publication also outlines common modifiers and coding considerations when available, and highlights areas where additional documentation and coding specificity are often required for accurate payment and utilization tracking.

This summary provides clinicians, coders, and policy analysts with concise context on CPT code 56631, what it represents clinically, and the payer landscape relevant to institutional and outpatient surgical billing.