Convert ICD-10 Code R09.82 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
R09.82 Postnasal drip		784.91 Postnasal drip

ICD-10 to ICD-9 crosswalk for code R09.82 - postnasal drip based on the most recent General Equivalence Mappings (GEMS) information.