ICD-10 Code H81.91 – Unspecified disorder of vestibular function, right ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H81.91 – Unspecified disorder of vestibular function, right ear
What it is
This code identifies a vestibular disorder affecting the right ear when the exact cause is not documented. Use it for balance-related inner ear dysfunction that remains unspecified after evaluation.
Clinical signs
Common findings include dizziness, vertigo, imbalance, or motion sensitivity. Clinical features vary; refer to documentation, and confirm that the provider specifies right-sided vestibular involvement.
When to use this code
Use H81.91 when the record states an unspecified vestibular disorder of the right ear and no more specific diagnosis is available. It may fit initial assessments, incomplete workups, or problem lists that document persistent right-sided vestibular dysfunction.
Code it only when the provider links the condition to the right ear. If later notes identify a more specific vestibular diagnosis, update the code accordingly.
Do not use for
Do not use this code for left ear, bilateral, or generalized vestibular disorders unless the documentation clearly states the right ear. Check documentation if the dizziness is due to another confirmed cause.
Coding tip
Always verify laterality and specificity in the assessment; unspecified codes are appropriate only when the chart does not support a more exact vestibular diagnosis.