text: Axial spondyloarthritis (axSpA) may be classified according to Assessment of SpondyloArthritis International Society (ASAS) into<unk>  spondylitis (AS) and non-radiographic axSpA (nr-axSpA). Formerly<unk>  spondylitis (AS) termed as spondyloarthritides or spondyloarthropathies. AS has been regarded as the prototype of spondyloarthritis. Previously<unk>  spondylitis (AS), spondyloarthritis (SpA), reactive arthritis, psoriatic arthritis, arthritis and spondylitis associated with Crohn disease and ulcerative colitis which belong to inflammatory bowel disease (IBD).
option_0: Ankylosing spondylitis classification
option_1: Osteoarthritis classification
option_2: Septic arthritis classification
option_3: Psoriatic arthritis classification
option_4: Bursitis classification
option_5: Fibromyalgia classification
option_6: Ankylosing spondylitis physical examination
option_7: Bursitis epidemiology and demographics