XIII: Diseases of the musculoskeletal system and connective tissue

M60-M79: Soft tissue disorders

Soft tissue disorders, as classified from M60 to M79 in the ICD-10 WHO 2016 edition, encompass a group of conditions affecting the tissues that connect, support, or surround other structures and organs of the body, excluding bones. These tissues include muscles, tendons, ligaments, fascia, nerves, and blood vessels. Many of these disorders, such as tendonitis, bursitis, and strains, are often caused by repetitive movements, sports injuries, or chronic diseases like diabetes. Other conditions like fibromyalgia and certain types of arthritis involve systemic inflammation that can affect the entire body. Common symptoms can include pain, swelling, stiffness, sensitivity to touch, and limited mobility in the affected region. The disease progression can vary widely depending on the specific condition, underlying causes, and individual health circumstances.