Congen absence of unsp thigh and lower leg w foot present

This code signifies a birth defect characterized by the complete absence of the thigh and lower leg bones and soft tissues, while the foot remains present. This is a congenital limb deficiency affecting the entire proximal and distal segments of the leg, but sparing the foot.

Apply this code when documentation clearly indicates a congenital absence of the entire thigh and lower leg, with the foot being the only remaining distal structure. This typically applies to infants or children diagnosed with a severe form of longitudinal limb deficiency affecting the femur and tibia/fibula.

• Ensure documentation specifies "unspecified" if the laterality (right/left) is not recorded.
• Distinguish from other congenital malformations where parts of the thigh or lower leg may be present (e.g., Q72.2-Q72.8).
• Code any associated congenital anomalies or complications separately.