Nontraumatic ischemic infarction of muscle, right lower leg

This code signifies the death of muscle tissue in the right lower leg due to a lack of blood supply, not caused by an injury. This condition, also known as muscle infarction or ischemic myonecrosis, results from insufficient oxygen and nutrients reaching the muscle cells.

Apply this code when documentation explicitly states nontraumatic ischemic infarction affecting the muscles of the right lower leg. This typically occurs in patients with severe peripheral arterial disease, vasculitis, or other conditions leading to compromised blood flow without an external traumatic event.

• Ensure documentation specifies "nontraumatic" and "ischemic" to differentiate from traumatic injuries or other forms of myonecrosis.
• Verify the laterality (right lower leg) is clearly documented; separate codes exist for other locations.
• Consider sequencing this code after the underlying cause of the ischemia, such as peripheral artery disease (I70.2-), if known and documented.