ICD-10 Code H81.20 – Vestibular neuronitis, unspecified ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H81.20 – Vestibular neuronitis, unspecified ear
What it is
H81.20 identifies vestibular neuronitis affecting an unspecified ear. Use it when the record documents inflammation or dysfunction of the vestibular nerve causing acute balance problems, but does not specify the side.
Clinical signs
Typical findings include sudden vertigo, nausea, vomiting, and unsteady gait, often without hearing loss. Clinical features vary; refer to documentation.
When to use this code
Use this code when the clinician diagnoses vestibular neuronitis and laterality is not recorded. It also fits notes that describe peripheral vestibular dysfunction consistent with vestibular neuritis, as long as the provider’s wording supports the diagnosis.
If the chart says “unspecified ear,” do not assume right or left. Check documentation before selecting a more specific code.
Do not use for
Do not use it for vertigo from other causes, such as benign positional vertigo, Meniere disease, or central neurologic disorders. Check documentation when the diagnosis is unclear.
Coding tip
Assign H81.20 only when vestibular neuronitis is documented and ear laterality is not stated.