H93.219

Clinical Causes: Sensorineural hearing loss due to damage to the inner ear or auditory nerve Aging-related changes in hearing sensitivity Exposure to loud noises leading to cochlear damage Inner ear infections or inflammatory processes Ototoxic medications that harm cochlear hair cells Neurological conditions affecting auditory pathways

Key Symptoms: Normal hearing at soft sounds Sudden or rapid increase in perceived loudness of sounds once a certain threshold is crossed Difficulty understanding speech in noisy environments due to abnormal sound perception Discomfort or pain in response to loud noises Feeling of fullness or pressure in the affected ear Potential dizziness or balance issues if inner ear function is involved

Diagnosis Path: Diagnosis typically involves a comprehensive hearing assessment including audiometry tests that evaluate hearing thresholds at various volumes and frequencies. Specific tests, like speech audiometry and loudness discomfort levels, help to identify abnormal loudness perceptions indicative of auditory recruitment. A clinician may also perform otoscopic examinations and physical assessments to rule out other ear conditions. In some cases, various imaging techniques are used to examine inner ear structures and auditory pathways.

Treatment Protocols: Use of hearing aids equipped with features to manage loudness perception, such as automatic volume control Auditory training and counseling to help adapt to sound sensitivity Strategies to reduce exposure to loud noises and protect remaining hearing Assistive listening devices for better clarity in challenging listening environments Addressing the underlying cause of hearing loss if identified—such as treatment of infections or adjustment of ototoxic medications In some cases, surgical options may be considered if structural abnormalities contribute to symptoms