Any Pitt-Hopkins-like syndrome in which the cause of the disease is a mutation in the NRXN1 gene. The disease is MONDO_0013690 (Pitt-Hopkins-like syndrome 2). Also known as: NRXN1 Pitt-Hopkins-like syndrome, Pitt-Hopkins-like syndrome caused by mutation in NRXN1, Pitt-Hopkins-like syndrome type 2.