An autosomal dominant non-syndromic intellectual disability that has material basis in an autosomal dominant mutation of ADNP on chromosome 20q13.13. The disease is ADNP-related multiple congenital anomalies - intellectual disability - autism spectrum disorder (MONDO_0014379). Also known as: ADNP Syndrome, ADNP syndrome, HVDAS, Helsmoortel-Van der Aa syndrome, MRD28, autosomal dominant intellectual disability 28, autosomal dominant mental retardation 28.