M43.2: Other fusion of spine

Other fusion of the spine, as classified under ICD-10 code M43.2, refers to a condition where abnormal, extra bone growth called 'bone fusion' occurs in the spine. This is beyond the normal fusion that happens in some parts of the spine naturally. The extra bone growth can cause two or more vertebrae, the small bones forming the backbone, to join or 'fuse' together. This can limit movement and cause stiffness in the back, making it painful or difficult for individuals to bend or turn. Often, this condition is a result of aging, injury, or diseases such as arthritis. Radical changes in bone structure like the spine's curvature can also occur, possibly placing pressure on surrounding nerves and causing pain, numbness or weakness in the limbs. The condition progresses gradually and may lead to severe mobility issues if not diagnosed and managed appropriately. No specific system is targeted as it directly affects the skeletal system, but associated symptoms can have an impact on the nervous and muscular systems.