Longitudinal reduction defect of right tibia

This code describes a congenital anomaly characterized by the partial or complete absence of the right tibia, affecting its length. It represents a birth defect where the long bone of the lower leg on the right side is underdeveloped or missing along its longitudinal axis. This condition can range from mild shortening to complete agenesis of the tibia.

Use this code for patients diagnosed with a congenital longitudinal deficiency specifically affecting the right tibia. This diagnosis is typically made at birth or early childhood based on physical examination and imaging studies such as X-rays or MRI. Documentation should clearly specify the right lower limb and the nature of the tibial reduction defect.

• Ensure documentation specifies "right" tibia; defects of the left tibia or bilateral defects have different codes.
• Distinguish from transverse reduction defects, which involve a complete absence of the distal part of the limb.
• Code any associated malformations or syndromes separately, if documented.