M86.471

HCC Category Mapping

What This Code Means

A chronic bone infection of the right ankle and foot bones 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
• •This code applies to chronic osteomyelitis affecting any bones in the right ankle and foot region

Clinical Significance

Chronic osteomyelitis with draining sinus of the right ankle and foot represents a severe, complicated bone infection with persistent drainage that significantly impacts mobility and weight-bearing function. This condition requires intensive treatment including prolonged antibiotics, surgical debridement, and specialized wound care, substantially affecting patient quality of life and functional capacity.

Documentation Requirements

• ✓Documentation of chronic osteomyelitis diagnosis
• ✓Clear evidence of draining sinus tract with ongoing drainage
• ✓Specific identification of right ankle and foot involvement
• ✓Detailed description of sinus tract location and drainage
• ✓Microbiological studies and culture results
• ✓Imaging studies demonstrating infection and sinus pathway
• ✓Treatment history including antibiotic therapy and surgical interventions
• ✓Assessment of ambulation status and functional limitations

Commonly Confused Codes