ICD-10-CM > M00-M99 > M86-M90 > M86 > M86.6 > M86.65 M86.65 Other chronic osteomyelitis, thigh Non-Billable/Non-Specific Codes M86.651Other chronic osteomyelitis, right thighM86.652Other chronic osteomyelitis, left thighM86.659Other chronic osteomyelitis, unspecified thigh