M11.87 - Other specified crystal arthropathies, ankle and foot M11.8 - Other specified crystal arthropathies M11.87 - Other specified crystal arthropathies, ankle and foot
M11.871 - Other specified crystal arthropathies, right ankle and foot M11.872 - Other specified crystal arthropathies, left ankle and foot M11.879 - Other specified crystal arthropathies, unspecified ankle and foot