CPT code 30210 denotes surgical drainage of infected ethmoid and sphenoid sinuses using a Proetz–type displacement technique. This code captures a targeted operative intervention for deep paranasal sinus infections that can have significant clinical implications, including the prevention of orbital or intracranial complications. Nationally, correct coding for these procedures affects case classification, hospital and physician billing, and surveillance of invasive sinus surgery rates.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, common sites of service, and the role of this code in operative documentation. The publication highlights benchmarking considerations, typical billing practices, and policy factors that influence coverage and reimbursement determinations at a national level.

The report is organized to help clinical billers, coding professionals, and policy analysts understand where 30210 fits within surgical otolaryngology services, what to expect in terms of service setting, and which payers commonly adjudicate claims for this type of procedure. Data not available in the input is noted where applicable in detailed sections.