XIX: Injury, poisoning and certain other consequences of external causes

S80-S89: Injuries to the knee and lower leg

Injuries to the knee and lower leg encompass a range of conditions resulting from trauma or damage to soft tissues, bones, or joints in these areas. This group includes fractures, dislocations, ligament, meniscus tears, and other injuries that can occur due to blows, falls, awkward motions, or accidents involving sharp objects. Stark impacts during sporting activities or automobile incidents are typical causes for these injuries. Symptoms vary based on the specific injury but can include pain, swelling, redness, bruising, inability to move the leg or foot, visible deformities, and instability or difficulty walking. Some injuries might trigger immediate symptoms, while others may gradually intensify over time. Besides the musculoskeletal system, these injuries can also affect the skin and circulatory system, such as causing open wounds or affecting blood vessels. These conditions typically warrant immediate medical attention due the potential for more severe complications like infection or permanent tissue damage.