Convert ICD-10 Code K12.0 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
K12.0 Recurrent oral aphthae		528.2 Oral aphthae

ICD-10 to ICD-9 crosswalk for code K12.0 - recurrent oral aphthae based on the most recent General Equivalence Mappings (GEMS) information.