ICD-10 Code H91 – Other and unspecified hearing loss (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H91 – Other and unspecified hearing loss
What it is
H91 identifies hearing loss that is not otherwise specified or does not fit a more exact ICD-10 category. Use it when the record documents hearing loss, but the type or cause is not clearly stated.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include reduced hearing acuity, difficulty understanding speech, or abnormal hearing screening results, but the exact pattern should be supported by the chart.
When to use this code
Use H91 when the provider documents hearing loss without further detail, such as unspecified, not otherwise classified, or other hearing loss. It may also apply when the note confirms hearing impairment but does not identify conductive, sensorineural, or mixed loss. Check documentation for laterality and specificity before assigning a more exact code.
Do not use for
Do not use H91 if the record clearly identifies conductive, sensorineural, mixed, or noise-related hearing loss. Also avoid it when the documentation supports a more specific diagnosis or when the hearing issue is unrelated to true hearing loss.
Coding tip
If the provider’s note is vague, code only what is documented and query for greater specificity when needed.