I89: Other noninfective disorders of lymphatic vessels and lymph nodes

I89.0: Lymphoedema, not elsewhere classified

Lymphoedema, not elsewhere classified, refers to a condition characterized by swelling, commonly in the arms or legs, due to a blockage in the lymphatic system that prevents lymph fluid from draining adequately. The lymphatic system plays an essential role in the body's immune function and fluid balance; hence, malfunction can lead to a buildup of fluid. This particular form of lymphoedema does not fall under other standard categories and seems to be unique or unspecified. Typical symptoms may include a heavy or tight feeling in the affected area, decreased flexibility, recurring infections, and hardening of the skin or changes in skin texture. Disease progression can vary from individual to individual, but generally, if left untreated, lymphoedema can lead to complications, including infections and lymphangiosarcoma, a rare form of soft tissue cancer. The precise cause of this form of lymphoedema is often hard to determine, but it could be linked to hereditary factors, birth defects, or certain diseases and conditions that affect the lymphatic system.