M89.52Non-Billable (Header)Osteolysis, upper armChild CodesM89.521Osteolysis, right upper armM89.522Osteolysis, left upper armM89.529Osteolysis, unspecified upper armCode Hierarchy└M89Other disorders of bone└M89.5Osteolysis└M89.52Osteolysis, upper arm└M89.52Osteolysis, upper arm