label: NRXN1-related severe neurodevelopmental disorder-motor stereotypies-chronic constipation-sleep-wake cycle disturbance
label_lc: nrxn1-related severe neurodevelopmental disorder-motor stereotypies-chronic constipation-sleep-wake cycle disturbance
description: A rare, genetic, neurodevelopmental disorder characterized by global developmental delay, severe intellectual disability and absence of expressive language. Muscular hypotonia, seizures, autistic behavior and stereotypic movements are common.