Summary & Overview
CPT 56640: Radical Vulvectomy with Regional Lymphadenectomy
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.
Billing Code Overview
CPT code 56640 describes a radical vulvectomy, a major surgical procedure to remove all or part of the vulva to treat malignant disease. The operation typically includes removal of adjacent tissue and regional lymphadenectomy, including inguinofemoral, iliac, and pelvic lymph nodes; clitoral removal may be performed depending on disease extent.
Service Type: Major surgical oncology procedure (radical vulvectomy with regional lymphadenectomy)
Typical Site of Service: Inpatient hospital surgical setting or an ambulatory surgical center for complex oncologic surgery
Clinical & Coding Specifications
Clinical Context
A 64-year-old female presents with a biopsy-proven invasive squamous cell carcinoma of the vulva with palpable ipsilateral inguinal lymphadenopathy and imaging suggesting pelvic nodal involvement. After multidisciplinary tumor board review, the plan is a 56640 radical vulvectomy with bilateral inguinofemoral and pelvic lymphadenectomy under general anesthesia. Preoperative workflow includes informed consent, medical clearance, anesthesia evaluation, and staging imaging. Intraoperative steps include wide excision of vulvar tissue including tumor and margin, possible clitoral resection depending on tumor extent, and selective removal of inguinofemoral, iliac, and pelvic lymph nodes. Postoperative workflow includes monitoring in PACU, pain control, wound and drain management, early ambulation, pathology review of margins and nodes, coordination with medical oncology and radiation oncology for adjuvant therapy if indicated, and wound-care follow-up in clinic.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work or time substantially exceeds typical for 56640 due to extensive dissection or complex reconstruction. |
| 23 | Unusual anesthesia | Use when surgery is performed under general anesthesia with extraordinary circumstances increasing anesthetic risk.