ICD-10-CM > M00-M99 > M60-M63 > M62 > M62.2 > M62.21 M62.21 Nontraumatic ischemic infarction of muscle, shoulder Non-Billable/Non-Specific Codes M62.211Nontraumatic ischemic infarction of muscle, right shoulderM62.212Nontraumatic ischemic infarction of muscle, left shoulderM62.219Nontraumatic ischemic infarction of muscle, unspecified shoulder