Other secondary osteonecrosis of right carpus

This code signifies osteonecrosis (bone death) in the right carpal bones that is not primary (idiopathic) but rather a consequence of another underlying condition or event. It indicates a compromised blood supply leading to the demise of bone tissue within the wrist, specifically affecting the right side.

Apply this code when documentation clearly states secondary osteonecrosis of the right carpus, often linked to trauma, steroid use, systemic diseases, or other identifiable causes. Supporting documentation should detail the etiology of the osteonecrosis and specify its location in the right wrist.

• Ensure the documentation explicitly states "secondary" osteonecrosis and specifies the "right carpus."
• Always code the underlying cause of the secondary osteonecrosis first, if known and documented.
• Differentiate from primary (idiopathic) osteonecrosis of the carpus, which has different code assignments.