ICD-10-CM > M00-M99 > M65-M67 > M67 > M67.9 > M67.92 M67.92 Unspecified disorder of synovium and tendon, upper arm Non-Billable/Non-Specific Codes M67.921Unspecified disorder of synovium and tendon, right upper armM67.922Unspecified disorder of synovium and tendon, left upper armM67.929Unspecified disorder of synovium and tendon, unspecified upper arm