ICD-10-CM > M00-M99 > M86-M90 > M90 > M90.6 > M90.67 M90.67 Osteitis deformans in neoplastic diseases, ankle and foot Non-Billable/Non-Specific Codes M90.671Osteitis deformans in neoplastic diseases, right ankle and footM90.672Osteitis deformans in neoplastic diseases, left ankle and footM90.679Osteitis deformans in neoplastic diseases, unspecified ankle and foot