Coxa plana, right hip

This code signifies Legg-Calvé-Perthes disease affecting the right hip. It is an idiopathic avascular necrosis of the femoral head, leading to collapse and deformity of the femoral epiphysis. This condition primarily affects children and can result in significant hip joint dysfunction.

Use this code for documented cases of Legg-Calvé-Perthes disease specifically impacting the right hip. Supporting documentation should clearly state the diagnosis of coxa plana or Perthes disease and specify the right side. This code is appropriate when the condition is active or its sequelae are being treated.

• Ensure laterality is clearly documented (right vs. left vs. bilateral) to select the correct subcategory.
• Do not confuse with other forms of avascular necrosis or congenital hip deformities.
• Consider additional codes for associated complications, such as osteoarthritis (M16.-) if present.