ICD-10-CM > H60-H95 > H80-H83 > H80 > H80.2 H80.2 Cochlear otosclerosis Non-Billable/Non-Specific Applicable To Otosclerosis involving otic capsuleOtosclerosis involving round window Codes H80.20Cochlear otosclerosis, unspecified earH80.21Cochlear otosclerosis, right earH80.22Cochlear otosclerosis, left earH80.23Cochlear otosclerosis, bilateral