M12.8 - Other specific arthropathies, not elsewhere classified
M12.87 - Other specific arthropathies, not elsewhere classified, ankle and foot
M12.871 - Other specific arthropathies, not elsewhere classified, right ankle and foot
M12.872 - Other specific arthropathies, not elsewhere classified, left ankle and foot
M12.879 - Other specific arthropathies, not elsewhere classified, unspecified ankle and foot