M68: Disorders of synovium and tendon in diseases classified elsewhere

M68.8: Other disorders of synovium and tendon in diseases classified elsewhere

Disorders of the synovium and tendon classified under M68.8 are medical conditions linked to other known diseases. The synovium is a soft tissue found in joints that produces synovial fluid to keep the joint lubricated. Tendons, on the other hand, join muscles to bones, enabling movement. If the synovium or tendons get affected by a disease, it may lead to inflammation, pain, and disruptions in the normal function of joints or movement. Common symptoms include redness, warmth at the afflicted area, joint pain, and restricted mobility. Diseases that could provoke such disorders range from autoimmune conditions to infectious diseases. The progression of these disorders greatly depends on the underlying disease causing the condition.