Chronic vestibular syndrome

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

A clinical syndrome of chronic vertigo, dizziness, or unsteadiness lasting months to years and generally including features suggestive of persistent vestibular system dysfunction (e.g., oscillopsia, nystagmus, gait unsteadiness). There may also be symptoms or signs suggesting cochlear or central nervous system dysfunction. Chronic vestibular syndrome often connotes a progressive, deteriorating course, but sometimes instead reflects a stable, incomplete recovery after an acute vestibular event, or persistent, lingering symptoms between episodic vestibular events.

sections/codes in this section (AB32-AB32)

• Persistent Postural-Perceptual Dizziness  (AB32.0)
• Chronic unilateral idiopathic vestibulopathy  (AB32.1)
• Persistent unilateral vestibulopathy after vestibular neuronitis  (AB32.2)
• Unilateral vestibulopathy due to schwannoma  (AB32.3)
• Unilateral vestibulopathy after medical intervention  (AB32.4)
• Chronic bilateral vestibulopathy  (AB32.5)
• Other specified chronic vestibular syndrome  (AB32.Y)
• Chronic vestibular syndrome, unspecified  (AB32.Z)

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