Monarch Disease Ontology identifier MONDO_0009804 (osteogenesis imperfecta type 3) can be described as follows. Osteogenesis imperfecta type III is a severe type of osteogenesis imperfecta (OI), a genetic disorder characterized by increased bone fragility, low bone mass and susceptibility to bone fractures. The main signs of type III include very short stature, a triangular face, severe scoliosis, grayish sclera, and dentinogenesis imperfecta (DI). Also known as: OI type 3, OI3, osteogenesis imperfecta type III, progressive deforming osteogenesis imperfecta, progressively deforming osteogenesis imperfecta with normal sclera, severe osteogenesis imperfecta.