Convert ICD-10 Code R49.21 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
R49.21 Hypernasality		784.43 Hypernasality

ICD-10 to ICD-9 crosswalk for code R49.21 - hypernasality based on the most recent General Equivalence Mappings (GEMS) information.