Convert ICD-10 Code K91.0 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
K91.0 Vomiting following gastrointestinal surgery		564.3 Vomiting post-gi surgery

ICD-10 to ICD-9 crosswalk for code K91.0 - vomiting following gastrointestinal surgery based on the most recent General Equivalence Mappings (GEMS) information.