nervous system disease
   |__sensory system disease
       |__auditory system disease  183 rec.
           |__adhesive otitis media
           |__auditory system benign neoplasm
           |   |__external ear lipoma
           |   |__internal auditory canal lipoma
           |   |__middle ear adenoma
           |__auditory system cancer
           |   |__ear cancer(+)
           |   |__malignant neoplasm of acoustic nerve
           |__dislocation of ear ossicle
           |__external ear disease
           |   |__cholesteatoma of external ear
           |   |__external ear cancer(+)
           |   |__otitis externa(+)
           |__inner ear disease 26 rec.
           |   |__cochlear disease
           |   |__inner ear cancer(+)
           |   |__labyrinthine dysfunction(+)
           |   |__motion sickness(+)
           |   |__otitis interna(+)
           |   |__otosclerosis(+) 4 rec.
           |   |__sensorineural hearing loss(+) 22 rec.
           |   |__sparganosis
           |   |__superior semicircular canal dehiscence
           |   |__vestibular disease(+)
           |__middle ear disease
           |   |__cholesteatoma of middle ear(+)
           |   |__mastoiditis
           |   |__middle ear adenoma
           |   |__middle ear cancer(+)
           |   |__otitis media(+)
           |   |__polyp of middle ear
           |   |__tympanic membrane disease(+)
           |__necrosis of ear ossicle
           |__nonsyndromic deafness 161 rec.
           |   |__autosomal dominant nonsyndromic deafness(+) 80 rec.
           |   |__autosomal recessive nonsyndromic deafness(+) 79 rec.
           |   |__drug-induced hearing loss(+) 1 rec.
           |   |__X-linked nonsyndromic deafness(+) 5 rec.
           |   |__Y-linked deafness(+) 1 rec.
           |__otorrhea
           |__retrocochlear disease
               |__vestibulocochlear nerve disease(+)