CPT code 42330 denotes sialolithotomy, the surgical removal of salivary gland stones that obstruct saliva flow. This procedure is clinically significant nationwide because salivary calculi can cause recurrent pain, infection, and impaired oral function; removal often resolves symptoms and prevents complications. The code applies to procedures on the parotid, submandibular, and sublingual glands and is relevant to otolaryngology, oral and maxillofacial surgery, and general surgical services.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, typical sites of service, and common billing considerations tied to CPT code 42330. The publication summarizes benchmarks and utilization patterns where available, explains how the code fits into surgical service lines, and highlights policy or coding updates that affect billing and coverage interpretations.

This summary is intended for a national audience of billing managers, clinicians, and policy analysts seeking a practical reference on clinical purpose, payer relevance, and the operational setting for CPT code 42330. Data not available in the input is noted where applicable.