ICD-10 Code H93.013 – Transient ischemic deafness, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H93.013 – Transient ischemic deafness, bilateral
What it is
H93.013 identifies a temporary, bilateral loss of hearing caused by reduced blood flow. It describes an ischemic hearing disturbance that is not permanent and affects both ears.
Clinical signs
Patients may report sudden or intermittent hearing reduction in both ears, often with a sense of muffled sound. Clinical features vary; refer to documentation for the exact episode and associated findings.
When to use this code
Use this code when the provider documents transient ischemic deafness affecting both ears. It is appropriate when the record links the hearing loss to a temporary ischemic process rather than infection, trauma, or chronic sensorineural loss.
If the note only says hearing loss or tinnitus without ischemic and bilateral detail, check documentation before assigning H93.013.
Do not use for
Do not use this code for permanent deafness, unilateral hearing loss, or unspecified hearing loss. Also avoid it when the documentation supports another ear disorder or the cause is not ischemic.
Coding tip
Confirm both the bilateral nature and the transient ischemic cause in the provider note before coding.