Other acute osteomyelitis, multiple sites

This code signifies an acute bacterial or fungal infection of bone and bone marrow affecting multiple, non-contiguous anatomical sites. It represents a rapid onset inflammatory process within the bone structure, often leading to bone destruction if not promptly treated.

Assign this code when documentation clearly indicates acute osteomyelitis involving more than one distinct bone or anatomical region. Supporting documentation should specify the acute nature of the infection and identify the multiple affected sites, such as acute osteomyelitis of the femur and tibia.

• Ensure the documentation specifies "acute" and "multiple sites" to differentiate from chronic or single-site osteomyelitis.
• Do not use this code if the osteomyelitis is due to a prosthetic joint, as specific codes exist for those scenarios.
• Always sequence this code after the underlying infectious organism, if known and documented.