Coxa plana, left hip

This code signifies Legg-Calvé-Perthes disease affecting the left hip. It describes avascular necrosis of the femoral head, leading to collapse and deformity, specifically localized to the left side. This condition primarily affects children, disrupting the blood supply to the growth plate of the hip joint.

Apply this code when documentation explicitly states a diagnosis of Legg-Calvé-Perthes disease or coxa plana of the left hip. Supporting clinical notes should detail findings consistent with avascular necrosis of the left femoral head, such as radiographic evidence of fragmentation, flattening, or sclerosis.

• Ensure laterality is clearly documented as "left hip" to support this specific code.
• Distinguish from other hip deformities or osteochondroses; this code is specific to avascular necrosis of the femoral head.
• Consider additional codes for any associated complications or sequelae, such as osteoarthritis, if documented.