AB30ICD-11 MMS 2026-01
Acute vestibular syndrome
Description
A clinical syndrome of acute-onset, continuous vertigo, dizziness, or unsteadiness lasting days to weeks, and generally including features suggestive of new, ongoing vestibular system dysfunction (e.g., vomiting, nystagmus, severe postural instability). There may also be symptoms or signs suggesting cochlear or central nervous system dysfunction. Acute vestibular syndrome usually connotes a single, monophasic event, often caused by a one-time disorder, but it may instead punctuate a relapsing-and-remitting or stepwise, progressive illness course. Disorders typically presenting this syndrome include vestibular neuritis, acute labyrinthitis, traumatic vestibulopathy, demyelinating disease with vestibular involvement, and strokes affecting central or peripheral vestibular structures.
Exclusions from above levels
Child codes
Sibling codes
AB31– Episodic vestibular syndromeAB32– Chronic vestibular syndromeAB33– OtosclerosisAB34– Disorders of vestibular functionAB35– Labyrinthine fistulaAB36– Labyrinthine dysfunctionAB37– Noise effects on inner earAB3Y– Other specified diseases of inner earAB3Z– Diseases of inner ear, unspecified
Foundation entity
Acute vestibular syndrome – http://id.who.int/icd/entity/1462112221
Allowed postcoordination axes
Part of: 10: Diseases of the ear or mastoid process