ICD-10 Code H81.2 – Vestibular neuronitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H81.2 – Vestibular neuronitis
What it is
H81.2 identifies vestibular neuronitis, an acute disorder of the vestibular nerve that causes sudden balance disturbance. It is used when the problem is limited to vertigo and disequilibrium, without hearing loss.
Clinical signs
Typical findings include abrupt onset of severe vertigo, nausea, vomiting, and unsteady gait. Hearing is usually preserved; if hearing symptoms are present, check documentation and consider a different diagnosis.
When to use this code
Use H81.2 when the provider documents vestibular neuronitis or vestibular neuritis as the cause of acute peripheral vertigo. It fits cases where the record describes a vestibular nerve inflammation pattern and excludes cochlear involvement. If the note is vague, code only what is documented.
Do not use for
Do not use this code for Ménière disease, benign paroxysmal positional vertigo, or vertigo with hearing loss unless the provider clearly states vestibular neuronitis. Check documentation if the diagnosis is uncertain.
Coding tip
Verify that the provider links the dizziness to vestibular neuronitis, not just nonspecific vertigo.