Subacute osteomyelitis, other site

This code signifies a bone infection that has progressed beyond the acute phase but has not yet become chronic, affecting a location other than a specified site like the spine, pelvis, or extremities. It involves inflammation of the bone and bone marrow caused by an infectious agent, presenting with symptoms that are less severe and more insidious than acute osteomyelitis.

Use this code when documentation clearly indicates subacute osteomyelitis in a bone not covered by more specific anatomical codes (e.g., skull, facial bones, ribs, sternum). Supporting documentation should describe a bone infection with a duration or presentation consistent with a subacute phase, often following an initial acute episode or with a gradual onset.

• Ensure the documentation specifies "subacute" and not acute or chronic osteomyelitis.
• Verify the anatomical site is not more specifically coded elsewhere (e.g., M86.20-M86.27).
• Code any associated infectious organism if identified and documented.