CPT code 42665 represents an intraoral surgical procedure in which a clinician makes an incision inside the mouth to access and ligate a salivary duct. This procedure is used to treat conditions such as chronic sialorrhea, recurrent obstructive sialadenitis, or persistent salivary fistulae when ductal ligation is clinically indicated. Nationally, accurate coding for duct ligation affects surgical case classification, facility resource planning, and appropriate payment for oral and maxillofacial surgical services.

Key payers commonly referenced for coverage and reimbursement practice include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code’s clinical context and procedural setting, plus guidance on typical documentation elements required to support claims. The publication also provides benchmarking information and policy-relevant updates that influence coding and payment decisions for salivary duct procedures.

This summary is intended to inform coding professionals, surgical providers, and health plan policy staff about the clinical scope of CPT code 42665, typical sites of service, and the kinds of benchmarks and policy elements that affect claim adjudication and reimbursement.