M86.451

HCC Category Mapping

What This Code Means

A chronic bone infection of the right thighbone (femur) that has created an open drainage channel through the skin, allowing infected material to drain continuously.

Coding Tips

• •Verify laterality is documented as 'right' in the medical record before assigning this code
• •Confirm the presence of a draining sinus tract; if only chronic osteomyelitis without drainage exists, use a different M86.4x code

Clinical Significance

Chronic osteomyelitis with draining sinus of the right femur represents a severe bone infection of the body's largest bone with persistent drainage, posing significant risks for pathologic fractures and mobility impairment. The draining component indicates treatment-resistant disease requiring aggressive management.

Documentation Requirements

• ✓Specific documentation of right femur involvement
• ✓Evidence of chronicity (>6 weeks duration or recurrent episodes)
• ✓Confirmation of active draining sinus tract from femur
• ✓Imaging findings demonstrating chronic osteomyelitic changes
• ✓Assessment of weight-bearing capacity and drainage characteristics
• ✓Laboratory markers supporting chronic infectious process
• ✓Treatment history addressing infection and sinus management
• ✓Provider assessment confirming chronic osteomyelitis with drainage

Commonly Confused Codes