Transient ischemic deafness, unspecified ear

This code signifies a temporary episode of hearing loss that is attributed to a transient reduction in blood supply to the inner ear or auditory nerve. It implies that the hearing impairment is not permanent and resolves spontaneously or with intervention. The specific ear affected is not documented.

Apply this code when documentation indicates a patient experienced sudden, temporary hearing loss without a clear etiology, and the clinician suspects an ischemic event. Supporting documentation should rule out other causes of sudden hearing loss, such as trauma, infection, or ototoxic medications, and confirm the transient nature of the episode.

• Avoid using this code if the laterality (right or left ear) is specified in the medical record; use the more specific H93.011 or H93.012.
• Do not use this code for permanent hearing loss; instead, refer to codes for sensorineural hearing loss (H90.5-H90.6).
• Ensure the documentation clearly states the transient nature of the deafness; otherwise, consider codes for sudden idiopathic hearing loss (H91.2-).