Hearing Loss, Sudden

**Definition:** Sensorineural hearing loss which develops suddenly over a period of hours or a few days. It varies in severity from mild to total deafness. Sudden deafness can be due to head trauma, vascular diseases, infections, or can appear without obvious cause or warning.

**Tree numbers:** - C09.218.458.341.900 - C10.597.751.418.341.900 - C23.888.592.763.393.341.900

**Synonyms:** - Sudden Hearing Loss