ICD-10-CM > M00-M99 > M86-M90 > M86 > M86.3 > M86.32 M86.32 Chronic multifocal osteomyelitis, humerus Non-Billable/Non-Specific Codes M86.321Chronic multifocal osteomyelitis, right humerusM86.322Chronic multifocal osteomyelitis, left humerusM86.329Chronic multifocal osteomyelitis, unspecified humerus