Convert ICD-10 Code C31.3 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
C31.3 Malignant neoplasm of sphenoid sinus		160.5 Mal neo sphenoid sinus

ICD-10 to ICD-9 crosswalk for code C31.3 - malignant neoplasm of sphenoid sinus based on the most recent General Equivalence Mappings (GEMS) information.