Other acute osteomyelitis, right shoulder

This code signifies an acute inflammatory process of the bone and bone marrow, specifically affecting the right shoulder, that is not due to a known pyogenic organism or other specified cause. It indicates a sudden onset infection of the right shoulder bone.

Apply this code when documentation specifies acute osteomyelitis of the right shoulder, and the causative organism is not identified as staphylococcal, streptococcal, or other specific bacteria. This diagnosis is typically supported by imaging studies (e.g., MRI, X-ray), laboratory findings (e.g., elevated inflammatory markers), and clinical presentation of acute infection localized to the right shoulder.

• Ensure documentation clearly states "acute" and specifies the "right shoulder" as the affected site.
• Distinguish from chronic osteomyelitis (M86.6x) and osteomyelitis due to specific organisms (e.g., M86.2x for other acute hematogenous).
• Always look for a more specific code if the causative organism is identified.