Oth chronic hematogenous osteomyelit, right radius and ulna

This code signifies a persistent, long-term bone infection of the right radius and ulna that originated from a bloodborne source. It indicates a non-acute inflammatory process affecting these specific forearm bones due to pathogens spread through the bloodstream.

Apply this code when documentation clearly states chronic osteomyelitis of the right radius and ulna, with an identified or presumed hematogenous origin. This diagnosis is typically supported by imaging studies (e.g., X-ray, MRI), bone biopsy results, and a history of persistent infection despite treatment.

• Differentiate from acute osteomyelitis (M86.1-) and other specified types (M86.2-M86.4).
• Ensure laterality (right) and specific bones (radius and ulna) are explicitly documented.
• Code any associated pathogens (e.g., B95-B97) as secondary diagnoses if identified.