Convert ICD-10 Code G31.1 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
G31.1 Senile degeneration of brain, not elsewhere classified		331.2 Senile degenerat brain

ICD-10 to ICD-9 crosswalk for code G31.1 - senile degeneration of brain, not elsewhere classified based on the most recent General Equivalence Mappings (GEMS) information.