M86.521

HCC Category Mapping

What This Code Means

A chronic bone infection of the right upper arm bone (humerus) that originated from a bloodstream infection.

Coding Tips

• •The humerus is the long bone of the upper arm; ensure this is the documented site and not the shoulder joint
• •Use M86.522 for left humerus infections

Clinical Significance

Other chronic hematogenous osteomyelitis of the right humerus represents a blood-borne bone infection that has become chronic, specifically affecting the right upper arm bone. This condition indicates systemic infection with targeted skeletal involvement requiring prolonged IV antibiotic therapy and monitoring, significantly impacting upper extremity function and overall patient health status.

Documentation Requirements

• ✓Documentation of chronic osteomyelitis diagnosis
• ✓Clear evidence of hematogenous (blood-borne) origin
• ✓Specific anatomic identification of right humerus involvement
• ✓Laboratory studies confirming systemic infection
• ✓Blood culture results or evidence of bacteremia
• ✓Treatment history including IV antibiotic duration
• ✓Imaging studies demonstrating right humerus infection
• ✓Assessment of upper extremity function and treatment response

Commonly Confused Codes