ICD-10-CM > M00-M99 > M80-M85 > M85 > M85.4 > M85.41 M85.41 Solitary bone cyst, shoulder Non-Billable/Non-Specific Codes M85.411Solitary bone cyst, right shoulderM85.412Solitary bone cyst, left shoulderM85.419Solitary bone cyst, unspecified shoulder