Considering that GJB2, SLC26A4, and CDH23 are the 3 most common causative genes of prelingual SNHL in Koreans [40] and that the founder alleles of these 3 genes are all included, our kit alone is expected to cover a substantial portion of prelingual severe-to-profound genetic SNHL in Koreans. The gene discussed is CDH23; the disease is sensorineural hearing loss disorder.