intellectual disability, autosomal dominant 6 (MONDO_0013509) is any autosomal dominant non-syndromic intellectual disability in which the cause of the disease is a mutation in the GRIN2B gene. Also known as: GRIN2B autosomal dominant non-syndromic intellectual disability, GRIN2B-related developmental delay, intellectual disability and autism spectrum disorder, MRD6, autosomal dominant mental retardation 6, autosomal dominant non-syndromic intellectual disability caused by mutation in GRIN2B, intellectual developmental disorder, autosomal dominant 6, with or without seizures, intellectual disability, autosomal dominant type 6, mental retardation, autosomal dominant type 6.