Convert ICD-10 Code H47.20 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
H47.20 Unspecified optic atrophy		377.10 Optic atrophy NOS

ICD-10 to ICD-9 crosswalk for code H47.20 - unspecified optic atrophy based on the most recent General Equivalence Mappings (GEMS) information.