ICD-10-CM > M00-M99 > M00-M02 > M02 > M02.8 > M02.87 M02.87 Other reactive arthropathies, ankle and foot Non-Billable/Non-Specific Applicable To Other reactive arthropathies, tarsus, metatarsus and phalanges Codes M02.871Other reactive arthropathies, right ankle and footM02.872Other reactive arthropathies, left ankle and footM02.879Other reactive arthropathies, unspecified ankle and foot