M11.1 - Familial chondrocalcinosis
M11.17 - Familial chondrocalcinosis, ankle and foot
M11.171 - Familial chondrocalcinosis, right ankle and foot
M11.172 - Familial chondrocalcinosis, left ankle and foot
M11.179 - Familial chondrocalcinosis, unspecified ankle and foot