Convert ICD-10 Code Y99.9 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
Y99.9 Unspecified external cause status		E000.9 Externl cause status NOS

ICD-10 to ICD-9 crosswalk for code Y99.9 - unspecified external cause status based on the most recent General Equivalence Mappings (GEMS) information.