Hyperacusis, bilateral

This code represents a condition characterized by an abnormal and often painful hypersensitivity to ordinary environmental sounds affecting both ears. Patients experience discomfort or pain at sound levels that are well tolerated by most individuals. It is a symptom, not a disease, often associated with other auditory or neurological conditions.

Assign this code when documentation clearly indicates a patient's bilateral hypersensitivity to sound, causing distress or pain. This diagnosis is typically made based on patient report and may be supported by audiological evaluations demonstrating reduced loudness discomfort levels (LDL) in both ears. Use this code when the hyperacusis is the primary reason for the encounter or a significant co-morbidity.

• Differentiate from phonophobia, which is a fear of sound, not necessarily a physical hypersensitivity.
• Always specify laterality; this code is for bilateral involvement.
• Look for underlying causes (e.g., migraine, head injury, Lyme disease) and code them additionally if documented.