ICD-10-CM > Q00-QA0 > Q65-Q79 > Q72 > Q72.2 Q72.2 Congenital absence of both lower leg and foot Non-Billable/Non-Specific Codes Q72.20Congenital absence of both lower leg and foot, unspecified lower limbQ72.21Congenital absence of both lower leg and foot, right lower limbQ72.22Congenital absence of both lower leg and foot, left lower limbQ72.23Congenital absence of both lower leg and foot, bilateral