What you have to prove
Either (1) an average air conduction hearing threshold of 90 decibels or greater in the better ear and an average bone conduction hearing threshold of 60 decibels or greater in the better ear, OR (2) a word recognition score of 40 percent or less in the better ear determined using a standardized list of phonetically balanced monosyllabic words.
Medical evidence SSA expects
Audiogram performed by a licensed audiologist with both air and bone conduction thresholds, plus word recognition testing.
Common misconceptions
Hearing aids don't count — SSA tests unaided hearing. Bilateral hearing aid users may still qualify based on the underlying audiogram.