ICD-10-CM > M00-M99 > M86-M90 > M88 > M88.8 > M88.86 M88.86 Osteitis deformans of lower leg Non-Billable/Non-Specific Codes M88.861Osteitis deformans of right lower legM88.862Osteitis deformans of left lower legM88.869Osteitis deformans of unspecified lower leg