A group of inflammatory rheumatic diseases associated with arthritis and enthesitis, and often involving the axial skeleton. The most common form of spondyloarthritis is ankylosing spondylitis. Other forms include axial spondyloarthritis, peripheral spondyloarthritis, reactive arthritis, psoriatic arthritis/spondylitis and enteropathic arthritis/spondylitis. The disease is MONDO_0005095 (spondyloarthropathy). Also known as: seronegative spondyloarthropathy, spondarthropathy, spondylarthrosis, spondyloarthritis.