Longitudinal reduction defect of left tibia

This code describes a congenital anomaly characterized by the partial or complete absence of the left tibia, a long bone in the lower leg. This defect results in a shortened or malformed lower limb, often accompanied by other skeletal abnormalities in the foot or ankle. It is a type of longitudinal limb deficiency affecting the medial bone of the lower leg.

Use this code for patients diagnosed with a congenital absence or significant underdevelopment of the left tibia. Documentation supporting this code typically includes imaging reports (X-rays, MRI) confirming the tibial defect, clinical examination findings noting limb length discrepancy and deformity, and genetic testing results if applicable. This code is appropriate for initial diagnosis and subsequent encounters related to the management of this condition.

• Ensure laterality is correctly identified; this code specifically refers to the left tibia.
• Code any associated congenital anomalies of the foot or ankle separately, such as talipes equinovarus (clubfoot), using appropriate Q codes.
• Do not confuse with transverse reduction defects, which involve the complete absence of a limb segment across its width.