ICD-10-CM > C00-D49 > D10-D36 > D16 > D16.2 D16.2 Benign neoplasm of long bones of lower limb Non-Billable/Non-Specific Codes D16.20Benign neoplasm of long bones of unspecified lower limbD16.21Benign neoplasm of long bones of right lower limbD16.22Benign neoplasm of long bones of left lower limb