Juvenile osteochondrosis of patella, left knee

This code signifies a developmental disorder affecting the growth plate of the left patella in juveniles, characterized by disruption of the ossification process. It results in pain, swelling, and functional limitations of the knee joint due to avascular necrosis and subsequent reossification of the patellar cartilage.

Apply this code for documented cases of osteochondrosis specifically impacting the patella of the left knee in pediatric or adolescent patients. Documentation should clearly indicate the laterality and the diagnosis of juvenile osteochondrosis of the patella, often confirmed by imaging studies.

• Ensure documentation specifies "juvenile" and "left patella" to support this code.
• Differentiate from other forms of osteochondrosis affecting different knee structures (e.g., Osgood-Schlatter disease, osteochondritis dissecans).
• Do not use for adult osteochondrosis, which would fall under different code categories.