Osteomyelitis of left orbit

This code signifies an infection of the bone within the left eye socket, specifically osteomyelitis affecting the orbital structures. This condition typically involves inflammation and destruction of the bony walls of the orbit due to bacterial or fungal pathogens.

Apply this code when documentation explicitly states osteomyelitis affecting the left orbit. This diagnosis is often supported by imaging studies (e.g., CT, MRI) showing bone destruction and clinical signs of infection localized to the left eye socket.

• Ensure laterality is clearly documented as "left orbit" to support this specific code.
• Do not confuse with orbital cellulitis (H05.01-) unless bone involvement is confirmed.
• Code any underlying systemic infection or causative organism (e.g., Staphylococcus aureus) as an additional diagnosis.