M45.ANon-billable (header)
Non-radiographic axial spondyloarthritis
Code Hierarchy
┌13Diseases of the musculoskeletal system and connective tissue (M00-M99)├M45-M49Spondylopathies (M45-M49)├M45Ankylosing spondylitis
└M45.ANon-radiographic axial spondyloarthritis
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