Convert ICD-10 Code C24.1 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
C24.1 Malignant neoplasm of ampulla of Vater		156.2 Mal neo ampulla of vater

ICD-10 to ICD-9 crosswalk for code C24.1 - malignant neoplasm of ampulla of vater based on the most recent General Equivalence Mappings (GEMS) information.