ICD-10-CM > M00-M99 > M60-M63 > M62 > M62.1 > M62.12 M62.12 Other rupture of muscle (nontraumatic), upper arm Non-Billable/Non-Specific Codes M62.121Other rupture of muscle (nontraumatic), right upper armM62.122Other rupture of muscle (nontraumatic), left upper armM62.129Other rupture of muscle (nontraumatic), unspecified upper arm