MONDO_0011242 (Bartter disease type 4A) is any Bartter syndrome in which the cause of the disease is a mutation in the BSND gene. Also known as: BARTS4A, BSND, BSND Bartter syndrome, Bartter disease type 4a, Bartter syndrome caused by mutation in BSND, Bartter syndrome type 4a, neonatal Bartter syndrome with sensorineural deafness.