ICD-10-CM > M00-M99 > M05-M14 > M12 > M12.0 > M12.07 M12.07 Chronic postrheumatic arthropathy [Jaccoud], ankle and foot Non-Billable/Non-Specific Codes M12.071Chronic postrheumatic arthropathy [Jaccoud], right ankle and footM12.072Chronic postrheumatic arthropathy [Jaccoud], left ankle and footM12.079Chronic postrheumatic arthropathy [Jaccoud], unspecified ankle and foot