ICD-10-CM > M00-M99 > M00-M02 > M02 > M02.1 > M02.16 M02.16 Postdysenteric arthropathy, knee Non-Billable/Non-Specific Codes M02.161Postdysenteric arthropathy, right kneeM02.162Postdysenteric arthropathy, left kneeM02.169Postdysenteric arthropathy, unspecified knee