cone-rod dystrophy 6 (MONDO_0011143) is any cone-rod dystrophy in which the cause of the disease is a mutation in the GUCY2D gene. Also known as: CORD6, GUCY2D cone-rod dystrophy, RCD2, cone-rod dystrophy caused by mutation in GUCY2D, cone-rod dystrophy type 6, retinal cone dystrophy 2.