ICD-10-CM > M00-M99 > M86-M90 > M86 > M86.6 > M86.64 M86.64 Other chronic osteomyelitis, hand Non-Billable/Non-Specific Codes M86.641Other chronic osteomyelitis, right handM86.642Other chronic osteomyelitis, left handM86.649Other chronic osteomyelitis, unspecified hand