Summary & Overview
CPT 69646: Radical Tympanoplasty with Mastoidectomy and Ossicular Reconstruction
CPT code 69646 represents a complex otologic surgery — a radical or complete tympanoplasty with mastoidectomy and ossicular chain reconstruction. This code is used when surgeons repair a perforated tympanic membrane, remove all or part of the mastoid, and reconstruct or repair the ossicular chain to restore conductive hearing. It captures a comprehensive middle ear procedure that typically involves the ear canal and tympanic membrane and is clinically significant for patients with chronic ear disease or extensive tympanic membrane damage. Nationally, the procedure matters because it involves specialized surgical resources, potential inpatient or outpatient operating room utilization, and coordination across surgical and audiologic services.
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, where the service is typically delivered, and the types of surgical components included under this code. The publication provides benchmarks and policy-relevant details such as how the procedure is classified for facility and professional billing, common payment considerations, and guidance on documentation elements that support medical necessity. Data not available in the input will be noted where applicable; the focus remains on national applicability and implications for billing, coding, and clinical documentation for complex tympanoplasty with mastoid surgery.
Billing Code Overview
CPT code 69646 describes a radical or complete tympanoplasty with mastoidectomy and ossicular chain reconstruction. The procedure addresses a perforated tympanic membrane and chronic middle ear disease by repairing or reconstructing the eardrum, removing all or part of the mastoid, and reconstructing the ossicular chain to improve conductive hearing. The description may also include reconstruction of the ear canal and other middle ear procedures as part of the same operative session.
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Service type: Complex otologic surgical procedure involving middle ear and mastoid reconstruction
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Typical site of service: Hospital operating room or ambulatory surgical center, performed by an otolaryngologist (ENT surgeon)
Clinical & Coding Specifications
Clinical Context
A 45-year-old patient presents with chronic conductive hearing loss and recurrent otorrhea after tympanic membrane perforation and longstanding cholesteatoma. Otologic examination and CT of the temporal bones demonstrate a large central tympanic membrane perforation, retraction pockets with cholesteatoma, and opacification of the mastoid air cells. Audiometry shows a conductive hearing loss with an air-bone gap of 30 dB. The surgical plan is a single-stage mastoidectomy with tympanoplasty and ossicular chain reconstruction (mastoidectomy with tympanic membrane reconstruction and ossiculoplasty) to remove disease, reconstruct the ear canal and tympanic membrane, and restore ossicular continuity.
Typical clinical workflow:
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Preoperative: history, physical exam, audiometry, temporal bone CT, informed consent, anesthesia evaluation, and preop documentation of laterality and baseline hearing.
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Intraoperative: general anesthesia, cortical/mastoidectomy (as indicated), removal of cholesteatoma or diseased mastoid air cells, tympanic membrane radical/complete reconstruction (tympanoplasty), ossicular chain reconstruction (ossiculoplasty) using prosthesis or autograft, reconstruction of the ear canal or canalplasty as needed, hemostasis, and placement of packing/drains.
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Postoperative: PACU recovery, short inpatient observation or same-day discharge depending on complexity and comorbidities, postoperative instructions, otic precautions, analgesia, antibiotic management if indicated, and scheduled audiometric follow-up and wound/endoscopic ear checks at 2–6 weeks and later for hearing assessment.
Typical site of service: Hospital operating room or ambulatory surgery center (depending on complexity and patient comorbidities).