Sialolithiasis (Salivary Stones) (CPB 0716, reviewed 2025-10-14)

Immediately: Billing team must update claim submission logic and prior authorization requirements to reflect Aetna's sialolithiasis coverage criteria. (1) Flag CPT codes 42500 and 42505 (sialodochoplasty) as NOT COVERED for sialolithiasis treatment and deny claims or request medical review. (2) Ensure CPT 70486 (CT maxillofacial) is NOT reimbursed when used specifically for navigation-assisted trans-facial parotid stone removal. (3) Update coding guidelines to treat sialendoscopy (when performed with other salivary gland/duct surgery on the same encounter) as an inclusive/incidental service—do NOT bill separately; bundle into primary procedure. (4) Confirm coverage for diagnostic ultrasound (CPT 76536) and non-contrast CT (CPT 70486) when used to detect nonpalpable stones in suspected sialolithiasis patients. (5) Create list of experimental/non-covered codes (pneumatic lithotripsy, elastography CPT 76391/76982/76983, SPECT, MR elastography, augmented reality visualization) and deny or request medical review if submitted. (6) Update encounter forms and provider education materials to clarify that ESWL and intraductal laser lithotripsy are covered ONLY when simple transoral approach is not possible or has failed. (7) Audit recent claims (past 60 days) for sialolithiasis cases to identify any incorrectly reimbursed sialendoscopy bundles or experimental procedures; recoup overpayments if necessary. Consequence: Claims lacking proper documentation of medical necessity or using non-covered codes will be denied, and duplicate reimbursement for bundled sialendoscopy services may trigger audits.