ICD-10-CM > Z00-Z99 > Z77-Z99 > Z89 > Z89.5 > Z89.51 Z89.51 Acquired absence of leg below knee Non-Billable/Non-Specific Codes Z89.511Acquired absence of right leg below kneeZ89.512Acquired absence of left leg below kneeZ89.519Acquired absence of unspecified leg below knee