Chronic osteomyelit w draining sinus, right tibia and fibula

This code signifies a persistent infection of the bone and bone marrow in the right lower leg (tibia and fibula) that has progressed to form a chronic draining sinus. This indicates a long-standing inflammatory process with a tract allowing pus or fluid to discharge to the skin surface.

Apply this code when documentation confirms a diagnosis of chronic osteomyelitis affecting the right tibia and fibula, specifically noting the presence of a draining sinus. This is typically supported by imaging studies (X-ray, MRI), culture results, and physical examination findings describing the chronic nature and the sinus tract.

• Ensure documentation explicitly states "chronic" osteomyelitis and specifies the presence of a "draining sinus."
• Verify laterality (right) and specific bones involved (tibia and fibula) are clearly documented.
• Do not use this code for acute osteomyelitis or chronic osteomyelitis without a draining sinus; separate codes exist for those conditions.