M87.037

HCC Category Mapping

What This Code Means

Death of bone tissue in the right wrist bones (carpus) without infection, occurring without a known cause.

Coding Tips

• •Ensure documentation specifies the carpus (wrist bones) and confirms right side involvement
• •Distinguish from other hand/finger codes; carpus refers specifically to the wrist bone group

Clinical Significance

Idiopathic aseptic necrosis of the right carpus represents bone death in the wrist bones without identifiable cause, potentially severely impacting hand function and grip strength. This condition often affects the scaphoid or lunate bones and can lead to wrist collapse requiring surgical intervention such as bone grafting or joint fusion.

Documentation Requirements

• ✓Documentation of aseptic necrosis specifically affecting right carpal bones
• ✓Confirmation of idiopathic etiology with no underlying cause identified
• ✓Imaging evidence demonstrating bone necrosis in right carpal structures
• ✓Clear laterality documentation specifying right wrist involvement
• ✓Exclusion of infectious processes through clinical assessment
• ✓Assessment of wrist function, range of motion, and grip strength
• ✓Treatment plan including conservative management or surgical options
• ✓Documentation of pain and functional impact on hand activities

Commonly Confused Codes