ICD-10-CM > M00-M99 > M91-M94 > M93 > M93.2 > M93.27 M93.27 Osteochondritis dissecans of ankle and joints of foot Non-Billable/Non-Specific Codes M93.271Osteochondritis dissecans, right ankle and joints of right footM93.272Osteochondritis dissecans, left ankle and joints of left footM93.279Osteochondritis dissecans, unspecified ankle and joints of foot