ICD-10-CM > M00-M99 > M00-M02 > M02 > M02.1 > M02.17 M02.17 Postdysenteric arthropathy, ankle and foot Non-Billable/Non-Specific Applicable To Postdysenteric arthropathy, tarsus, metatarsus and phalanges Codes M02.171Postdysenteric arthropathy, right ankle and footM02.172Postdysenteric arthropathy, left ankle and footM02.179Postdysenteric arthropathy, unspecified ankle and foot