ICD-10-CM > M00-M99 > M05-M14 > M11 > M11.2 > M11.27 M11.27 Other chondrocalcinosis, ankle and foot Non-Billable/Non-Specific Codes M11.271Other chondrocalcinosis, right ankle and footM11.272Other chondrocalcinosis, left ankle and footM11.279Other chondrocalcinosis, unspecified ankle and foot