ICD-10-CM > Z00-Z99 > Z77-Z99 > Z89 > Z89.5 > Z89.52 Z89.52 Acquired absence of knee Non-Billable/Non-Specific Applicable To Acquired absence of knee joint following explantation of knee joint prosthesis, with or without presence of antibiotic-impregnated cement spacer Codes Z89.521Acquired absence of right kneeZ89.522Acquired absence of left kneeZ89.529Acquired absence of unspecified knee