ICD-10 Code H93.3X2 – Disorders of left acoustic nerve (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H93.3X2 – Disorders of left acoustic nerve
What it is
This code identifies a disorder affecting the left acoustic nerve, also called the vestibulocochlear nerve. Use it when the record documents a left-sided nerve abnormality rather than a broader ear condition.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings may include unilateral hearing changes, tinnitus, or balance-related complaints when the left acoustic nerve is involved.
When to use this code
Use this code when the provider specifically identifies a disorder of the left acoustic nerve in the assessment, problem list, or diagnostic report. It fits unilateral nerve pathology, such as a left-sided acoustic nerve lesion or dysfunction. If the note only says hearing loss or ear symptoms without nerve involvement, check documentation.
Do not use for
Do not use this code for unspecified ear disease, general hearing loss, or right-sided acoustic nerve disorders. If the laterality or nerve diagnosis is unclear, check documentation.
Coding tip
Verify that the left side and acoustic nerve involvement are explicitly documented before assigning H93.3X2.