| H80 | Otosclerosis | NON-BILLABLE CODE |
| H80.0 | Otosclerosis involving oval window, nonobliterative | NON-BILLABLE CODE |
| H80.00 | Otosclerosis involving oval window, nonobliterative, unspecified ear | BILLABLE CODE |
| H80.01 | Otosclerosis involving oval window, nonobliterative, right ear | BILLABLE CODE |
| H80.02 | Otosclerosis involving oval window, nonobliterative, left ear | BILLABLE CODE |
| H80.03 | Otosclerosis involving oval window, nonobliterative, bilateral | BILLABLE CODE |
| H80.1 | Otosclerosis involving oval window, obliterative | NON-BILLABLE CODE |
| H80.11 | Otosclerosis involving oval window, obliterative, right ear | BILLABLE CODE |
| H80.12 | Otosclerosis involving oval window, obliterative, left ear | BILLABLE CODE |
| H80.13 | Otosclerosis involving oval window, obliterative, bilateral | BILLABLE CODE |
| H80.2 | Cochlear otosclerosis | NON-BILLABLE CODE |
| H80.20 | Cochlear otosclerosis, unspecified ear | BILLABLE CODE |
| H80.21 | Cochlear otosclerosis, right ear | BILLABLE CODE |
| H80.22 | Cochlear otosclerosis, left ear | BILLABLE CODE |
| H80.23 | Cochlear otosclerosis, bilateral | BILLABLE CODE |
| H80.8 | Other otosclerosis | NON-BILLABLE CODE |
| H80.80 | Other otosclerosis, unspecified ear | BILLABLE CODE |
| H80.81 | Other otosclerosis, right ear | BILLABLE CODE |
| H80.82 | Other otosclerosis, left ear | BILLABLE CODE |
| H80.83 | Other otosclerosis, bilateral | BILLABLE CODE |
| H80.9 | Unspecified otosclerosis | NON-BILLABLE CODE |
| H80.90 | Unspecified otosclerosis, unspecified ear | BILLABLE CODE |
| H80.91 | Unspecified otosclerosis, right ear | BILLABLE CODE |
| H80.92 | Unspecified otosclerosis, left ear | BILLABLE CODE |
| H80.93 | Unspecified otosclerosis, bilateral | BILLABLE CODE |
