CPT Knowledgebase - Dec 8, 2022

A patient with a longstanding history of chronic left-side mastoiditis, having undergone multiple otologic procedures that resulted in a canal wall down cavity presents with experience of continued difficulty with otorrhea, despite medical therapy, with a maximal conductive hearing loss and inability to utilize a conventional hearing aid. What is the appropriate code(s) to report a subtotal petrosectomy with blind sac closure of external auditory meatus with microsurgical technique performed to treat left-side chronic otitis media with chronic mastoiditis and conductive hearing loss?

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