ICD-10 Code H81.8X3 – Other disorders of vestibular function, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H81.8X3 – Other disorders of vestibular function, bilateral
What it is
This code identifies a bilateral vestibular disorder that does not fit a more specific vestibular diagnosis. It indicates impaired balance or spatial orientation involving both inner ears or vestibular pathways.
Clinical signs
Common findings include dizziness, unsteadiness, and difficulty walking, especially in the dark or on uneven surfaces. Clinical features vary; refer to documentation.
When to use this code
Use it when the provider documents a bilateral vestibular dysfunction, vestibulopathy, or similar nonspecific vestibular disorder and no more precise code is available. It may apply when both sides are affected and the record does not support a different inner ear diagnosis. Check documentation if the laterality or exact disorder is unclear.
Do not use for
Do not use this code for unilateral vestibular disorders or conditions with a more specific documented diagnosis. Avoid it when the chart only mentions nonspecific dizziness without vestibular involvement.
Coding tip
Confirm bilateral involvement in the provider note before assigning H81.8X3.