ICD-10 Code H91.01 – Ototoxic hearing loss, right ear (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H91.01 – Ototoxic hearing loss, right ear
What it is
H91.01 identifies hearing loss in the right ear caused by exposure to ototoxic substances. Use it when the record documents drug- or toxin-related damage affecting hearing on that side.
Clinical signs
Typical findings include reduced hearing sensitivity, often after exposure to a known ototoxic medication or chemical. Clinical features vary; refer to documentation for laterality and cause.
When to use this code
Use this code when the provider states ototoxic hearing loss specifically in the right ear. It is appropriate when the note links the hearing loss to an ototoxic agent, such as a medication or toxin. If the laterality or cause is unclear, check documentation.
Do not use for
Do not use this code for unspecified hearing loss, left ear hearing loss, or bilateral ototoxic hearing loss. Do not assign it if ototoxicity is not documented.
Coding tip
Confirm both the ototoxic cause and right-ear laterality in the chart before assigning H91.01.