Nontraumatic ischemic infarction of muscle, left thigh

This code signifies muscle tissue death in the left thigh resulting from a lack of blood supply, not caused by an injury. This condition is often associated with underlying vascular compromise, such as peripheral artery disease, leading to localized muscle necrosis.

Apply this code when documentation clearly indicates an ischemic event causing infarction of the muscle in the left thigh, without evidence of trauma. This typically occurs in patients with severe atherosclerosis or other conditions that impede blood flow to the limb. Supporting documentation would include imaging studies confirming muscle necrosis and clinical notes ruling out traumatic injury.

• Ensure documentation specifies "nontraumatic" and the exact location (left thigh).
• Distinguish from muscle strain or contusion; this code represents tissue death due to ischemia.
• Code any underlying conditions contributing to the ischemia, such as peripheral artery disease, as additional diagnoses.