Add Comment Question: what letter indicates E.I eligiblity Answer: There are various 'letters' on a Record of Employment that could entitle you to EI benefits. For examples, codes A, D, F, M, P or K could all potentially entitle you to EI benefits. Your Comment * Your Email * Your Name * Your City Note, your name, city and email is not displayed on the website. It is used to notify you that we have approved your comment.