M86.49

HCC Category Mapping

What This Code Means

A chronic bone infection affecting multiple sites in the body that has created persistent drainage channels through the skin.

Coding Tips

• •This code requires documentation of multiple affected sites; if only one site is involved, use site-specific codes instead
• •The presence of a draining sinus is a key clinical indicator that distinguishes this from other chronic osteomyelitis presentations

Clinical Significance

Chronic osteomyelitis with draining sinus affecting multiple sites represents the most complex form of chronic bone infection with widespread skeletal involvement and persistent drainage pathways. This condition indicates severe systemic infection requiring aggressive multi-modal treatment approaches, prolonged hospitalization, and intensive monitoring, substantially impacting all aspects of patient health and functionality.

Documentation Requirements

• ✓Documentation of chronic osteomyelitis diagnosis
• ✓Clear evidence of draining sinus tracts at multiple locations
• ✓Specification of multiple anatomic sites involved
• ✓Detailed description of each affected site and drainage pattern
• ✓Comprehensive microbiological studies from multiple sites
• ✓Extensive imaging studies showing multifocal infection
• ✓Complex treatment regimens including multiple antibiotics
• ✓Assessment of overall functional status and prognosis

Commonly Confused Codes