M86.542

HCC Category Mapping

What This Code Means

A chronic bone infection of the left hand bones that developed from bacteria spreading through the bloodstream.

Coding Tips

• •Ensure laterality is clearly documented as left before assigning this code
• •This encompasses all carpal, metacarpal, and phalangeal bones of the left hand

Clinical Significance

Chronic hematogenous osteomyelitis affecting the left hand bones represents a severe infection requiring intensive treatment due to the hand's functional complexity. This condition often results in prolonged disability and may require surgical intervention, significantly impacting the patient's ability to perform activities of daily living.

Documentation Requirements

• ✓Documentation of chronic duration (minimum 6 weeks or recurrent episodes)
• ✓Clear evidence of hematogenous spread (bloodstream origin)
• ✓Specific identification of left hand bone involvement
• ✓Radiographic confirmation of bone infection or osteolytic changes
• ✓Laboratory studies supporting active infection (ESR, CRP, cultures)
• ✓Assessment of functional impairment and disability
• ✓Documentation of antibiotic therapy and surgical interventions
• ✓Differentiation from acute osteomyelitis or post-traumatic infection

Commonly Confused Codes