ICD-10-CM > M00-M99 > M65-M67 > M66 > M66.1 > M66.11 M66.11 Rupture of synovium, shoulder Non-Billable/Non-Specific Codes M66.111Rupture of synovium, right shoulderM66.112Rupture of synovium, left shoulderM66.119Rupture of synovium, unspecified shoulder