MONDO_0013820 (intellectual disability, autosomal dominant 15) is any Coffin-Siris syndrome in which the cause of the disease is a mutation in the SMARCB1 gene. Also known as: COFFIN-SIRIS syndrome 3, CSS3, Coffin-Siris syndrome caused by mutation in SMARCB1, MRD15, SMARCB1 Coffin-Siris syndrome, SMARCB1-related BAFopathy, autosomal dominant intellectual disability 15, autosomal dominant mental retardation 15.