Hyperacusis, left ear

This code signifies an abnormal and often painful hypersensitivity to ordinary environmental sounds specifically affecting the patient's left ear. Individuals experience sounds at a normal volume as excessively loud or intolerable, leading to significant discomfort and potential avoidance behaviors. It is a symptom, not a disease, and can be associated with various underlying conditions.

Apply this code when documentation clearly indicates a diagnosis of hyperacusis localized to the left ear. This typically arises from patient complaints of sound intolerance, often confirmed by audiological assessment or clinical observation. Documentation should specify the laterality to the left ear.

• Ensure the medical record explicitly states "left ear" or "unilateral left" for hyperacusis.
• Do not confuse with tinnitus (ringing in the ears) or phonophobia (fear of sound), though these may co-occur.
• Code any underlying cause of the hyperacusis, if known, as a primary diagnosis, with hyperacusis as a secondary diagnosis.