ICD-10-CM > M00-M99 > M86-M90 > M87 > M87.8 > M87.81 M87.81 Other osteonecrosis, shoulder Non-Billable/Non-Specific Codes M87.811Other osteonecrosis, right shoulderM87.812Other osteonecrosis, left shoulderM87.819Other osteonecrosis, unspecified shoulder