Summary & Overview
CPT 69667: Exploratory Tympanotomy for Round Window Fistula
CPT code 69667 represents an exploratory tympanotomy performed to identify and repair a round window fistula, typically arising after stapes surgery for otosclerosis. This targeted otologic surgical procedure addresses suspected perilymphatic leaks that can cause hearing loss, vertigo, or persistent ear symptoms. Nationally, accurate coding of this procedure matters for clinical quality tracking, surgical outcome monitoring, and appropriate facility and surgeon reimbursement in otolaryngology care.
Key payers covered in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for CPT code 69667, comparisons of how major payers handle coverage and payment policy for related otologic procedures, and typical sites of service and service type information. The publication also outlines common billing considerations, such as the procedural setting and documentation elements that support medical necessity.
This briefing is intended for billing managers, otolaryngology providers, revenue cycle staff, and policy analysts seeking a practical summary of the code's clinical use and payer landscape. It highlights national policy and administrative issues rather than state-specific rules. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 69667 describes an exploratory tympanotomy to treat a round window fistula, most commonly performed after stapes surgery for otosclerosis when a suspected perilymphatic leak or fistula requires surgical exploration. The service type is a surgical otologic procedure involving the middle ear structures. The typical site of service is an operating room or ambulatory surgical center where ear surgery under microscopic visualization and possible general anesthesia is performed.
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Clinical & Coding Specifications
Clinical Context
A 54-year-old patient presents to an otolaryngology clinic with persistent sensorineural and conductive hearing changes, aural fullness, and episodic vertigo that began after prior stapedectomy for otosclerosis. Otoscopic exam and audiometry suggest a possible perilymphatic fistula at the round window. After failed conservative management and confirmatory clinical evaluation, the patient is scheduled for an operative exploratory tympanotomy with inspection of the round window niche and repair as indicated. The procedure is performed in an outpatient ambulatory surgery center or hospital operating room under general anesthesia. The usual clinical workflow includes preoperative assessment and informed consent, administration of general anesthesia, microscopic transcanal tympanotomy, identification of a round window fistula (if present), repair using soft tissue graft, fibrin sealant, or other appropriate material, intraoperative documentation of findings and repair, and immediate postoperative recovery with audiometric follow-up and activity restrictions. Typical providers include otolaryngologists (neurotologists) and surgical teams experienced in middle ear exploration and fistula repair. Billing reflects the exploratory tympanotomy procedure for treatment of a round window fistula following stapes surgery for otosclerosis using CPT 69667.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services |