Osteochondritis dissecans, joints of right hand

This code signifies a condition where a segment of cartilage and underlying bone detaches or partially detaches from the articular surface within the joints of the patient's right hand. This osteochondral lesion can lead to pain, swelling, and mechanical symptoms such as catching or locking. It typically results from repetitive microtrauma or ischemia.

Apply this code when documentation explicitly states osteochondritis dissecans affecting any joint within the right hand (e.g., carpometacarpal, metacarpophalangeal, or interphalangeal joints). Supporting documentation should include diagnostic imaging findings (e.g., X-ray, MRI) confirming the osteochondral lesion and specifying the right hand.

• Ensure laterality is clearly documented as "right hand"; do not use for left or bilateral involvement.
• Distinguish from other forms of osteochondrosis or arthritis; this code is specific to osteochondritis dissecans.
• Code any associated pathological fractures or loose bodies separately if documented and clinically significant.