vets_code vets_text 00 N/A 01 Veteran 03 World War II or Korean War or Vietnam Era 09 Gulf War Era 12 Veterans who served in Gulf War Era 2 (whether or not they served in Era 1) 13 Veterans who served in Gulf War Era 1 but not Gulf War Era 2 16 Other Service Periods (may include peacetime) 25 Nonveteran