CPT code 57150 represents a vaginal canal washout procedure, often performed with topical medication instillation to treat bacterial, fungal, or parasitic infections. The code is used to bill for a focused gynecologic washout that may be provided in ambulatory surgical centers, hospital outpatient departments, or clinic procedure rooms. Nationally, the code matters because it captures a targeted procedural treatment distinct from diagnostic or systemic therapies and informs payment for procedure-based vaginal care.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of clinical context and service settings, an outline of common modifiers associated with procedural services (input provided), and notes on billing considerations when a washout with medication instillation is documented. The publication highlights how the procedure is classified, typical sites of service, and what to expect in coding and claims workflows. Where input was not provided, the report indicates that data was not available in the input. The content is intended for national audiences—clinicians, coding professionals, and payers—seeking clarity on the clinical and billing definition of CPT code 57150.