Deafness (ear)
| Classification according to ICD-10 | |
|---|---|
| H90 | Congenital hearing loss due to conductive or sensorineural disorders, including hearing loss or deafness |
| H91.9 | Other hearing loss, hearing loss or deafness without further information |
| H91.3 | Deaf dumbness, not elsewhere classified |
| ICD-10 online (WHO version 2019) | |
Under deafness (lat. Surditas, gr. Anakusis ) is understood in the otology total loss of function of the pars cochlearis the vestibulocochlear nerve or the Corti organ of the inner ear . Depending on whether only one ear or both ears are affected, one speaks of unilateral or bilateral deafness.
In otology, the terms "clinical deafness" or "practical deafness" are also used if the extent of the hearing loss is practically equivalent to deafness, but a partial function of the inner ear can still be demonstrated audiometrically . Such a situation can occur in particular with combined hearing loss .
If the deafness is only one-sided, language acquisition in children can proceed normally. Directional hearing is not possible . With bilateral deafness, normal language acquisition is considerably more difficult and can lead to considerable social disadvantage. In Germany, this disability is usually referred to as deafness , formerly also called deaf-mute . People who lose their hearing as adolescents or adults after learning the language are referred to as deaf or late deaf in the German-speaking world .
In addition to the general finding of deafness , the following other forms are defined according to ICD-10:
- Psychogenic deafness (F44.6)
- Bark deafness (H90.5)
- Numbness of soul (R48.1)
- Word deafness (F80.2)
- Central deafness (H90.5)
