Summary & Overview
CPT 56633: Radical Vulvectomy for Malignant Disease
CPT code 56633 represents a radical vulvectomy, a major surgical oncology procedure performed to remove all or part of the vulva for malignant disease. The procedure is clinically significant because it addresses invasive gynecologic cancers that require wide local excision and, when indicated, concurrent lymphadenectomy. Nationally, this code captures high-acuity surgical care with implications for hospital resource use, perioperative planning, and postoperative surveillance.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for 56633, an outline of typical sites of service and service type, and an explanation of why the code matters for surgical oncology workflows and payer coverage considerations. The publication presents benchmarks where available, highlights relevant policy and coding guidance updates, and summarizes common billing modifiers and documentation themes associated with major vulvar surgery. This summary is intended to orient clinicians, coding professionals, and payers to the clinical intent and billing context of CPT code 56633 at a national level.
Billing Code Overview
CPT code 56633 describes a radical vulvectomy, a surgical procedure to remove all or part of the vulva to treat malignant disease. The operation may include removal of adjacent tissue and, depending on disease extent, lymph node dissection and resection of the clitoris. Because the procedure is radical, excision often involves tissue beyond the visible tumor margins.
Service Type: Major surgical oncology procedure
Typical Site of Service: Inpatient or outpatient hospital surgical suite
Clinical & Coding Specifications
Clinical Context
A typical patient is a postmenopausal woman presenting with a vulvar lesion that biopsy confirms as invasive squamous cell carcinoma of the vulva. The patient undergoes preoperative staging with pelvic exam, imaging (pelvic MRI or CT), and counseling about surgical options. The surgical team—typically a gynecologic oncologist with support from anesthesiology and perioperative nursing—performs a 56633 radical vulvectomy under general anesthesia to remove the primary tumor with wide margins. The procedure may include partial or complete removal of the clitoris and adjacent soft tissue and can be combined with uni- or bilateral inguinal-femoral lymphadenectomy when indicated. Intraoperative frozen section pathology may be used to assess margins. Postoperative care includes pain control, wound care, venous thromboembolism prophylaxis, and coordination of adjuvant therapy if pathology indicates. Typical sites of service are an outpatient surgical center for select cases or an inpatient hospital operating room when lymphadenectomy, reconstruction, comorbidities, or planned observation are anticipated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the work required is substantially greater than typically required for 56633 (document extra work and time). |