Nontraumatic ischemic infarction of muscle, left ank/ft

This code signifies muscle tissue death (infarction) in the left ankle and foot due to a lack of blood supply, not caused by an injury. This condition typically results from underlying vascular compromise leading to ischemia.

Apply this code when documentation clearly indicates a diagnosis of nontraumatic ischemic muscle infarction affecting the left ankle and foot. Supporting clinical notes should describe symptoms such as severe pain, swelling, and functional impairment, along with diagnostic findings confirming muscle necrosis and an ischemic etiology without trauma.

• Ensure the documentation specifies "nontraumatic" to differentiate from traumatic muscle injuries.
• Verify the laterality is explicitly stated as "left ankle and foot."
• Code any underlying conditions causing the ischemia (e.g., peripheral artery disease, embolism) as additional diagnoses.