Convert ICD-10 Code C40.21 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
C40.21 Malignant neoplasm of long bones of right lower limb		170.7 Mal neo long bones leg
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

ICD-10 to ICD-9 crosswalk for code C40.21 - malignant neoplasm of long bones of right lower limb based on the most recent General Equivalence Mappings (GEMS) information.