Convert ICD-10 Code A51.0 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
A51.0 Primary genital syphilis		091.0 Primary genital syphilis

ICD-10 to ICD-9 crosswalk for code A51.0 - primary genital syphilis based on the most recent General Equivalence Mappings (GEMS) information.