M65-M68: Disorders of synovium and tendon
M68: Disorders of synovium and tendon in diseases classified elsewhere
Disorders of synovium and tendon in diseases classified elsewhere generally refer to conditions where the lining (synovium) of the joints and the fibers (tendons) connecting muscle to bone become inflamed or damaged due to other underlying diseases. These conditions can range from mild synovitis, characterized by swelling and pain in the joint, to severe tendon disorders causing restricted movement. Often, these conditions stem from diseases such as rheumatoid arthritis, lupus, or gout, where abnormal immune responses or metabolic issues induce inflammation in the joint and tendon tissues. Symptoms include stiffness, pain, tenderness, and sometimes, visible swelling around the affected joints. The progression of the disease could be gradual or sudden, largely dependent on the cause and severity of the underlying condition. Disorders in this group primarily affect the musculoskeletal system, disrupting both joint function and physical mobility.
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