CPT code 58820 represents surgical drainage of an ovarian abscess via an incision of the vaginal wall. The code captures a targeted gynecologic procedure used to evacuate purulent collections in the adnexa and address acute pelvic infection. Nationally, accurate coding for this service is important for claims integrity, quality measurement of gynecologic infection management, and appropriate facility and surgeon reimbursement.

Key payers covered in this publication include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for when the procedure is indicated, typical sites of service, and common billing considerations. The publication summarizes available benchmarks where present, notes relevant policy and coverage patterns from major payers, and outlines common documentation elements tied to coding justification. Data gaps from the input are identified as "Data not available in the input." The material is intended for a national audience of coding professionals, clinical billers, and policy analysts seeking a clear reference to CPT code 58820 and its role in gynecologic surgical care.