ICD-10-CM > M00-M99 > M05-M14 > M11 > M11.2 > M11.26 M11.26 Other chondrocalcinosis, knee Non-Billable/Non-Specific Codes M11.261Other chondrocalcinosis, right kneeM11.262Other chondrocalcinosis, left kneeM11.269Other chondrocalcinosis, unspecified knee