Any facioscapulohumeral muscular dystrophy in which the cause of the disease is a mutation in the SMCHD1 gene. The disease is MONDO_0008031 (facioscapulohumeral muscular dystrophy 2). Also known as: SMCHD1 facioscapulohumeral muscular dystrophy, facioscapulohumeral muscular dystrophy caused by mutation in SMCHD1, facioscapulohumeral muscular dystrophy type 2, fascioscapulohumeral muscular dystrophy 2, digenic, digenic dominant.