Infective myositis, left forearm

This code identifies inflammation of the muscles in the left forearm caused by an infection. This condition typically presents with pain, swelling, and tenderness in the affected area, often accompanied by systemic signs of infection like fever.

Apply this code when documentation specifies an infectious etiology for myositis localized to the left forearm. This includes bacterial, viral, fungal, or parasitic infections directly affecting the muscle tissue. Supporting documentation should clearly state "infective myositis" and specify the left forearm as the affected site.

• Ensure the documentation explicitly states an infectious cause; otherwise, consider non-infective myositis codes.
• Verify laterality. This code is specific to the left forearm; use M60.031 for the right forearm or M60.039 for unspecified.
• Code the underlying infectious agent (e.g., B95-B97) as an additional diagnosis, if known and documented.