ICD-10-CM > H60-H95 > H80-H83 > H80 > H80.9 H80.9 Unspecified otosclerosis Non-Billable/Non-Specific Codes H80.90Unspecified otosclerosis, unspecified earH80.91Unspecified otosclerosis, right earH80.92Unspecified otosclerosis, left earH80.93Unspecified otosclerosis, bilateral