ICD-10-CM > M00-M99 > M86-M90 > M86 > M86.3 > M86.31 M86.31 Chronic multifocal osteomyelitis, shoulder Non-Billable/Non-Specific Codes M86.311Chronic multifocal osteomyelitis, right shoulderM86.312Chronic multifocal osteomyelitis, left shoulderM86.319Chronic multifocal osteomyelitis, unspecified shoulder