Convert ICD-10 Code C11.9 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
C11.9 Malignant neoplasm of nasopharynx, unspecified		147.9 Mal neo nasopharynx NOS

ICD-10 to ICD-9 crosswalk for code C11.9 - malignant neoplasm of nasopharynx, unspecified based on the most recent General Equivalence Mappings (GEMS) information.