Subacute osteomyelitis, left shoulder

This code signifies an inflammatory condition of the bone and bone marrow in the left shoulder, characterized by a subacute presentation. It indicates an infection that has progressed beyond the acute phase but has not yet become chronic, often involving bacterial or fungal pathogens.

Use this code when documentation specifies osteomyelitis of the left shoulder with a subacute onset or duration. This typically applies to cases where symptoms have been present for several weeks to a few months, and imaging or pathology confirms bone infection. Supporting documentation should clearly state "subacute" and specify the left shoulder.

• Ensure the documentation explicitly states "subacute" and not acute or chronic to avoid miscoding.
• Verify laterality (left shoulder) is clearly documented; do not assume.
• Code any associated infectious organism (e.g., Staphylococcus aureus) as an additional diagnosis.