Deafness, Autosomal Recessive 44, also known as dfnb44, is related to deafness, autosomal recessive 99 and deafness, autosomal dominant 20. An important gene associated with Deafness, Autosomal Recessive 44 is ADCY1 (Adenylate Cyclase 1), and among its related pathways/superpathways is Sensory processing of sound. Related phenotypes are prelingual sensorineural hearing impairment and nervous system