M86.622

HCC Category Mapping

What This Code Means

A chronic bone infection in the left upper arm bone (humerus) that persists over time, causing ongoing inflammation and potential bone damage.

Coding Tips

• •Verify laterality is documented as 'left' in the medical record before assigning this code
• •Ensure the osteomyelitis is documented as chronic (not acute) and specify the causative organism if documented for more complete coding

Clinical Significance

Chronic osteomyelitis of the left humerus represents a persistent bone infection that severely impacts upper extremity function and activities of daily living. The condition often requires extensive medical management and rehabilitation services, with potential for long-term disability affecting work capacity and independence.

Documentation Requirements

• ✓Confirmation of chronic nature (minimum 6 weeks duration or recurrent)
• ✓Specific documentation of left humerus involvement
• ✓Non-hematogenous etiology (contiguous spread or direct inoculation)
• ✓Radiographic evidence of bone infection or osteomyelitic changes
• ✓Laboratory studies supporting chronic infection process
• ✓Functional assessment of left arm and upper extremity
• ✓Documentation of antibiotic therapy duration and effectiveness
• ✓Assessment of occupational impact and adaptive needs

Commonly Confused Codes