Other secondary osteonecrosis, right hand

This code signifies bone tissue death in the right hand that is not due to a primary cause, but rather a consequence of another underlying condition or event. It indicates avascular necrosis affecting the carpal bones, metacarpals, or phalanges of the right hand, where the etiology is secondary.

Apply this code when documentation specifies osteonecrosis of the right hand, and the provider identifies a secondary cause such as steroid use, trauma, systemic lupus erythematosus, or sickle cell disease. Ensure the medical record clearly distinguishes this from primary (idiopathic) osteonecrosis.

• Always code the underlying cause of the secondary osteonecrosis first, if known and documented.
• Distinguish carefully between primary (idiopathic) and secondary osteonecrosis; the M87.3- category is specifically for secondary forms.
• Verify laterality (right hand) is explicitly stated in the documentation to support this specific code.