ICD-10-CM > M00-M99 > M60-M63 > M62 > M62.2 > M62.26 M62.26 Nontraumatic ischemic infarction of muscle, lower leg Non-Billable/Non-Specific Codes M62.261Nontraumatic ischemic infarction of muscle, right lower legM62.262Nontraumatic ischemic infarction of muscle, left lower legM62.269Nontraumatic ischemic infarction of muscle, unspecified lower leg