CPT 56637 Radical Vulvectomy Reimbursement & Policy | OpenPayer

Summary & Overview

CPT 56637: Radical Vulvectomy with Bilateral Inguinofemoral Lymphadenectomy

CPT code 56637 represents a radical vulvectomy performed for malignant disease of the vulva and includes bilateral inguinofemoral lymph node removal. This extensive oncologic surgery carries substantial clinical and resource implications because it often requires inpatient hospitalization, complex perioperative care, and multidisciplinary follow-up. Nationally, the code is relevant for hospital surgical services, oncology programs, and payers managing high-acuity gynecologic cancer care.

Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will learn clinical context for the procedure, typical sites of service, common billing modifiers and considerations, and where CPT code 56637 fits within gynecologic oncology service lines. The publication also summarizes benchmarks and policy-relevant points affecting coverage and utilization management for radical vulvectomy procedures. If specific payer policies or fee benchmarks are sought, readers should consult the individual payer medical policies and fee schedules for the most current details.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare56637CPTvulvectomygynecologic-oncologysurgical-oncologylymphadenectomyinpatient-surgery

Billing Code Overview

CPT code 56637 describes a radical vulvectomy, a surgical procedure to remove all or part of the vulva for malignant disease. The procedure as described includes bilateral inguinofemoral lymph node removal and may include removal of the clitoris and adjacent tissue as required by the extent of the malignancy.

Service Type: Radical oncologic vulvar surgery with bilateral lymphadenectomy

Typical Site of Service: Inpatient or hospital-based operating room

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A typical patient is a postmenopausal woman presenting with a biopsy-confirmed invasive vulvar squamous cell carcinoma or other vulvar malignancy with clinical or radiographic evidence prompting definitive surgical management. Preoperative evaluation includes pelvic exam, biopsy, imaging (pelvic MRI or CT), and counseling regarding extent of resection, possible clitoral removal, and bilateral inguinofemoral lymphadenectomy. The surgical workflow includes general anesthesia in an operating room, radical excision of the vulvar primary with removal of adjacent tissue margins, and bilateral inguinofemoral lymph node dissection. Hemostasis and wound closure may require reconstructive techniques such as skin graft or flap. Postoperative care includes inpatient monitoring for pain control, wound care, management of drains, venous thromboembolism prophylaxis, and coordination of pathology results to guide adjuvant therapy. Typical site of service is an inpatient hospital operating room; ambulatory surgical center use is uncommon for this radical procedure due to complexity and need for lymphadenectomy and potential reconstruction. Common payors for authorization and claims processing include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthCare, BUCA, and Medicare.

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier (default)	Use when no special modifier applies to the service.

CPT 56740: Surgical Treatment for Bartholin’s Gland Abscess or Cyst

CPT-56630-RADICAL-VULVECTOMY-MAJOR-ONCOLOGIC-SURGERY

CPT 56630: Radical Vulvectomy for Malignant Disease

CPT-56620-SIMPLE-VULVECTOMY-GYNECOLOGIC-EXCISION

CPT 56620: Simple Vulvectomy for Benign or Premalignant Vulvar Conditions

CPT-56700-HYMENOTOMY-HYMENAL-REVISION

CPT 56700: Hymenotomy and Hymenal Ring Revision

CPT-56640-RADICAL-VULVECTOMY-WITH-LYMPHADENECTOMY

CPT 56640: Radical Vulvectomy with Regional Lymphadenectomy

CPT-56605-VULVAR-PERINEAL-LESION-EXCISION-BIOPSY

CPT 56605: Excision of Single Vulvar or Perineal Lesion

CPT-56632-RADICAL-VULVECTOMY-WITH-INGUINOFEMORAL-LYMPH-NODE-DISSECTION

CPT 56632: Radical Vulvectomy with Bilateral Inguinofemoral Lymph Node Dissection

CPT-56634-RADICAL-VULVECTOMY-INGUINOFEMORAL-LYMPH-NODE

CPT 56634: Radical Vulvectomy with Unilateral Inguinofemoral Lymph Node Removal

CPT-56606-EXCISION-VULVA-PERINEUM-ADDITIONAL-LESIONS

CPT 56606: Excision of Suspicious Vulvar or Perineal Lesions

CPT-56633-RADICAL-VULVECTOMY-SURGICAL-ONCOLOGY

CPT 56633: Radical Vulvectomy for Malignant Disease

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Taxonomy Code	Specialty	Notes
`208100000X`	Gynecologic Oncology	Primary specialty performing radical vulvectomy with lymphadenectomy.
`207V00000X`	Obstetrics & Gynecology	General gynecologists experienced in vulvar cancer surgery may perform this procedure.
`208000000X`	Surgical Oncology	Surgical oncologists may perform or co-manage complex oncologic resections and node dissections.
`207P00000X`	Gynecology & Obstetrics - Reconstructive	Plastic and reconstructive surgeons or gynecologic reconstructive specialists involved in flap/graft closure.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`C51.0`	Malignant neoplasm of labium majus	Primary vulvar cancers necessitating radical vulvectomy depending on extent.
`C51.1`	Malignant neoplasm of labium minus	Primary vulvar cancers of labia minora; may require radical resection.
`C51.2`	Malignant neoplasm of clitoris	Tumors of the clitoris may require partial or total clitoridectomy as part of `56637`.
`C51.8`	Malignant neoplasm of overlapping sites of vulva	Tumors spanning multiple vulvar subsites often require more extensive radical excision.
`C51.9`	Malignant neoplasm of vulva, unspecified	Used when specific vulvar subsite is not specified in documentation but malignancy is present.
`C49.A1`	Malignant neoplasm of external female genital organs, unspecified	Alternative capture when coding conventions or documentation indicate other external genital malignancy requiring radical excision.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`19318`	Breast reconstruction, immediate or delayed, with tissue expander, placement of tissue expander(s)	Not directly related anatomically but illustrative of reconstructive coding principles; reconstructive procedures (e.g., flap or graft) performed with vulvar reconstruction have separate applicable codes and documentation requirements.
`38745`	Lymphadenectomy, retroperitoneal, or pelvic lymph node sampling or excision	Pelvic or retroperitoneal node evaluation may be performed when indicated for staging beyond inguinofemoral nodes; technique and coding differ from the bilateral inguinofemoral lymphadenectomy included in `56637`.
`15734`	Muscle, myocutaneous or fasciocutaneous flap with microvascular anastomosis (all ages)	Used when complex flap reconstruction is required after wide radical vulvar resection; reported separately when applicable.
`11981`	Balloon catheter for soft tissue expander placement	Occasionally used in staged reconstruction workflows when tissue expansion is part of the closure plan.
`11042`	Debridement; subcutaneous tissue (includes epidermis and dermis, if performed)	May be used for wound debridement procedures if required postoperatively and billed separately from `56637`.

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