Juvenile osteochondrosis of tibia tubercle, unspecified leg

This code describes Osgood-Schlatter disease affecting an unspecified leg. It is a painful inflammation of the patellar ligament at the tibial tuberosity, common in adolescents during growth spurts due to repetitive stress from activities involving running and jumping.

Apply this code when documentation confirms a diagnosis of juvenile osteochondrosis specifically of the tibial tubercle, and the affected leg (left or right) is not specified. This diagnosis is typically made clinically based on localized pain, swelling, and tenderness at the tibial tuberosity in an adolescent.

• Ensure the documentation explicitly states "unspecified leg" or lacks laterality for the tibial tubercle involvement.
• Do not use this code if the laterality (left or right leg) is clearly documented; instead, select the more specific code.
• This code is for the unspecified leg; codes for left (M92.522) or right (M92.521) should be used when specified.