| H748X | Other specified disorders of middle ear and mastoid |
| H748X1 | Other specified disorders of right middle ear and mastoid |
| H748X2 | Other specified disorders of left middle ear and mastoid |
| H748X3 | Other specified disorders of middle ear and mastoid, bilateral |
| H748X9 | Other specified disorders of middle ear and mastoid, unspecified ear |
| H749 | Unspecified disorder of middle ear and mastoid |
| H7490 | Unspecified disorder of middle ear and mastoid, unspecified ear |
| H7491 | Unspecified disorder of right middle ear and mastoid |
| H7492 | Unspecified disorder of left middle ear and mastoid |
| H7493 | Unspecified disorder of middle ear and mastoid, bilateral |
| H75 | Other disorders of middle ear and mastoid in diseases classified elsewhere |
| H750 | Mastoiditis in infectious and parasitic diseases classified elsewhere |
| H7500 | Mastoiditis in infectious and parasitic diseases classified elsewhere, unspecified ear |
| H7501 | Mastoiditis in infectious and parasitic diseases classified elsewhere, right ear |
| H7502 | Mastoiditis in infectious and parasitic diseases classified elsewhere, left ear |
| H7503 | Mastoiditis in infectious and parasitic diseases classified elsewhere, bilateral |
| H758 | Other specified disorders of middle ear and mastoid in diseases classified elsewhere |
| H7580 | Oth disrd of mid ear and mast in dis classd elswhr, unsp ear Other specified disorders of middle ear and mastoid in diseases classified elsewhere, unspecified ear |
| H7581 | Oth disrd of r mid ear and mastoid in diseases classd elswhr Other specified disorders of right middle ear and mastoid in diseases classified elsewhere |
| H7582 | Oth disrd of l mid ear and mastoid in diseases classd elswhr Other specified disorders of left middle ear and mastoid in diseases classified elsewhere |
| H7583 | Other specified disorders of middle ear and mastoid in diseases classified elsewhere, bilateral |
| H80 | Otosclerosis |
| H800 | Otosclerosis involving oval window, nonobliterative |
| H8000 | Otosclerosis involving oval window, nonobliterative, unspecified ear |
| H8001 | Otosclerosis involving oval window, nonobliterative, right ear |
| H8002 | Otosclerosis involving oval window, nonobliterative, left ear |
| H8003 | Otosclerosis involving oval window, nonobliterative, bilateral |
| H801 | Otosclerosis involving oval window, obliterative |
| H8010 | Otosclerosis involving oval window, obliterative, unspecified ear |
| H8011 | Otosclerosis involving oval window, obliterative, right ear |
| H8012 | Otosclerosis involving oval window, obliterative, left ear |
| H8013 | Otosclerosis involving oval window, obliterative, bilateral |
| H802 | Cochlear otosclerosis |
| H8020 | Cochlear otosclerosis, unspecified ear |
| H8021 | Cochlear otosclerosis, right ear |
| H8022 | Cochlear otosclerosis, left ear |
| H8023 | Cochlear otosclerosis, bilateral |
| H808 | Other otosclerosis |
| H8080 | Other otosclerosis, unspecified ear |
| H8081 | Other otosclerosis, right ear |
| H8082 | Other otosclerosis, left ear |
| H8083 | Other otosclerosis, bilateral |
| H809 | Unspecified otosclerosis |
| H8090 | Unspecified otosclerosis, unspecified ear |
| H8091 | Unspecified otosclerosis, right ear |
| H8092 | Unspecified otosclerosis, left ear |
| H8093 | Unspecified otosclerosis, bilateral |
| H81 | Disorders of vestibular function |
| H810 | Meniere's disease |
| H8101 | Meniere's disease, right ear |