Convert ICD-10 Code T78.3XXA to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T78.3XXA Angioneurotic edema, initial encounter		995.1 Angioneurotic edema
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

ICD-10 to ICD-9 crosswalk for code T78.3XXA - angioneurotic edema, initial encounter based on the most recent General Equivalence Mappings (GEMS) information.