C40 - Malignant neoplasm of bone and articular cartilage of limbs
C40.3 - Malignant neoplasm of short bones of lower limb
C40.30 - Malignant neoplasm of short bones of unspecified lower limb
C40.31 - Malignant neoplasm of short bones of right lower limb
C40.32 - Malignant neoplasm of short bones of left lower limb