Vietnam Vietnam Embassy visa  (or visa code called by many people) is a pre-approved letter issued by Vietnam Immigration Department which let Vietnam visa applicants collect Vietnam visa stamped at Vietnam Embassy/Consulate. You will need to show this document to the Embassy / Consulate, pay the stamping fee and get your Vietnam visa stamped into your passport. You can select the Vietnam Embassy visa by clicking on the type of visaat step 1 when applying for Vietnam visa online and follow the instructions.