Deafness, Autosomal Recessive 12, also known as dfnb12, is related to usher syndrome, type if and nonsyndromic hearing loss. An important gene associated with Deafness, Autosomal Recessive 12 is CDH23 (Cadherin Related 23), and among its related pathways/superpathways are Olfactory Signaling Pathway and Sensory processing of sound. Affiliated tissues include brain, and related phenotypes are prelingual sensorineural hearing impairment and rod-cone dystrophy