M86.629

HCC Category Mapping

What This Code Means

A chronic bone infection in the upper arm bone (humerus) where the specific side (left or right) is not specified or documented.

Coding Tips

• •Use this code only when laterality cannot be determined from the medical record
• •Query the provider if possible to obtain laterality information for more specific coding

Clinical Significance

This code represents chronic osteomyelitis of the humerus when laterality is not specified. Despite the unspecified laterality, this condition represents a serious bone infection affecting upper arm function that requires intensive management and may result in significant functional impairment and disability.

Documentation Requirements

• ✓Documentation of chronic osteomyelitis duration (>6 weeks or recurrent)
• ✓Humerus bone involvement without laterality specification
• ✓Non-hematogenous etiology (contiguous or direct inoculation)
• ✓Imaging studies confirming bone infection in humerus
• ✓Laboratory evidence of infection or inflammatory response
• ✓Assessment of upper arm function and mobility
• ✓Treatment documentation including antibiotic therapy
• ✓Justification for unspecified laterality (bilateral involvement or unclear documentation)

Commonly Confused Codes