Q65-Q79: Congenital malformations and deformations of the musculoskeletal system

Q74: Other congenital malformations of limb(s)

The group of conditions classified as "Other congenital malformations of limb(s)" refers to a collection of birth defects that affect the arms, legs, hands, or feet. Congenital signifies that these malformations occur during the development of the baby in the womb, although the exact cause is often unknown. Various genetic factors, maternal health conditions, or exposure to certain substances during pregnancy may contribute to these malformations. These disorders are characterized by structural abnormalities in the limbs, such as underdeveloped bones, missing parts, or extra digits. The severity and specific manifestations can vary greatly from slight irregularities only noticeable upon careful examination, to significant physical limitations requiring adaptive support. Symptoms generally relate to the function and appearance of the affected limb(s) and may include difficulty with movement, coordination, or grip strength, among other challenges. Disease progression usually remains stable, as the conditions are present at birth and do not generally worsen over time.