Osteochondritis dissecans, left wrist

This code signifies a condition where a segment of cartilage and underlying bone in the left wrist separates or loosens from the joint surface. This typically results from a disruption of blood supply to the subchondral bone, leading to avascular necrosis and subsequent fragmentation.

Apply this code when documentation explicitly states osteochondritis dissecans affecting the left wrist. This diagnosis is often supported by imaging studies such as X-rays, MRI, or CT scans demonstrating the characteristic lesion.

• Ensure the laterality (left) is clearly documented.
• Distinguish from other wrist conditions like avascular necrosis of the lunate (Kienböck's disease) or traumatic osteochondral fractures.
• Look for associated symptoms like pain, swelling, or mechanical locking of the wrist joint.