Congenital coxa vara

This code describes a congenital deformity of the hip where the angle between the head and shaft of the femur is decreased, leading to a shortened leg and limping gait. It is a developmental anomaly present at birth, affecting the proximal femur.

Use this code for documented cases of congenital coxa vara, typically identified in infancy or early childhood due to gait abnormalities or leg length discrepancy. Supporting documentation includes physician notes detailing the diagnosis, physical examination findings, and imaging reports confirming the femoral neck-shaft angle abnormality.

• Differentiate from acquired coxa vara, which would be coded differently (e.g., M91.3- for post-traumatic).
• Ensure documentation specifies "congenital" to support this specific code.
• Consider additional codes for associated conditions or complications, such as gait abnormalities (R26.-) or leg length discrepancy (R29.3).