diastematomyelia split cord malformation, composite type https://github.com/monarch-initiative/mondo/issues/9871 split cord malformation type 1.5 split cord malformation, intermediate type A rare intermediate form of split cord malformation characterized by both hemichords encapsulated in a single dural sac with presence of an incomplete ventral or dorsal bony spur. split cord malformation, mixed type Orphanet:633076 MONDO:1060222