Infective myositis, unspecified left leg

This code signifies an inflammation of the skeletal muscle in the left leg caused by an infectious agent, where the specific type of infection is not documented. It represents a localized muscle infection without further specification of the causative organism.

Use this code when documentation indicates infective myositis affecting the left leg, but the physician has not specified the infectious agent (e.g., bacterial, viral, fungal). This code is appropriate when the laterality of the affected leg is clearly stated as left, and no further detail regarding the infection type is available.

• Ensure documentation explicitly states "left leg" for laterality; otherwise, an unspecified laterality code would be more appropriate.
• Avoid using this code if the specific infectious organism (e.g., Staphylococcus aureus) is identified; instead, code the specific infective myositis.
• Always review the medical record for any additional details that might allow for a more specific myositis code.