ICD-10-CM > M00-M99 > M20-M25 > M25 > M25.7 > M25.77 M25.77 Osteophyte, ankle and foot Non-Billable/Non-Specific Codes M25.771Osteophyte, right ankleM25.772Osteophyte, left ankleM25.773Osteophyte, unspecified ankleM25.774Osteophyte, right footM25.775Osteophyte, left footM25.776Osteophyte, unspecified foot