###### Diseases of inner ear (H80-H83)
H80 Otosclerosis
**_Incl.:_** otospongiosis

**H80.0 Otosclerosis involving oval window,**

**nonobliterative**

**H80.1 Otosclerosis involving oval window,**

**obliterative**

**H80.2 Cochlear otosclerosis**

Otosclerosis involving:

    - otic capsule

    - round window

**H80.8 Other otosclerosis**

**H80.9 Otosclerosis, unspecified**