ICD-10-CM > M00-M99 > M20-M25 > M25 > M25.2 > M25.27 M25.27 Flail joint, ankle and foot Non-Billable/Non-Specific Codes M25.271Flail joint, right ankle and footM25.272Flail joint, left ankle and footM25.279Flail joint, unspecified ankle and foot