Summary & Overview
CPT 42660: Salivary Duct Dilation and Catheterization
CPT code 42660 represents salivary duct dilation with catheter introduction, a targeted otolaryngology/oral surgery procedure used to diagnose and manage obstructive salivary gland conditions. Nationally, this code captures minimally invasive interventions that can relieve ductal obstruction, facilitate sialendoscopy access, or assist with contrast imaging during assessment of salivary gland pathology. Its proper use affects coding accuracy, facility billing, and care pathway tracking for patients with recurrent sialadenitis or ductal strictures.
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, typical sites of service, and what to expect in billing practice for this procedure. The publication outlines common benchmarks and reimbursement considerations, policy updates affecting outpatient otolaryngology procedures, and coding nuances that influence claim adjudication. Clinical context explains the procedure’s role in diagnosis and management of salivary duct disorders, while the policy and billing sections summarize payer practice patterns and documentation elements that commonly influence coverage and payment. Data not available in the input will be noted where applicable.
Billing Code Overview
CPT code 42660 describes a procedure in which the provider dilates a salivary duct and introduces a catheter. The procedure may include injection of radiopaque dye to assist with visualization but the dye is optional.
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Service type: Duct dilation and catheterization of salivary duct
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Typical site of service: Procedure is typically performed in an outpatient clinic, ambulatory surgery center, or hospital outpatient department where minor otolaryngology or oral and maxillofacial procedures are performed.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting to an otolaryngology clinic or ambulatory procedure suite with acute or chronic obstructive symptoms of a major salivary gland (most commonly the submandibular or parotid gland). The patient reports recurrent painful swelling of the gland associated with meals, a history of sialolithiasis (salivary duct stone) or ductal stricture, or persistent gland swelling despite conservative therapy (hydration, sialogogues, massage, antibiotics). After evaluation with clinical exam and, when indicated, ultrasound or CT sialography, the provider elects diagnostic and therapeutic ductal dilation with catheterization to remove obstruction or assess ductal anatomy. The procedure workflow typically includes informed consent, topical or local anesthesia with or without minimal sedation, cannulation and dilation of the salivary duct, optional instillation of radiopaque contrast for fluoroscopic visualization, possible stone extraction or irrigation, and post-procedure observation with discharge instructions. The usual site of service is an outpatient otolaryngology clinic, ambulatory surgery center, or hospital outpatient department. Typical documentation includes indication, informed consent, anesthesia type, laterality, procedural steps (dilation, catheter type, use of contrast), findings, any complications, and post-procedure plan.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when reporting only the provider’s professional interpretation or service separate from the technical component (rare for this procedure). |