You won't believe these 10 facts about people. In order to become a claims adjudicator in the United States, you should have a high school diploma or a general equivalency diploma (GED). Some employers may indicate a preference for candidates who have at least attended college, but a degree is usually not required.ou should have an aptitude for conducting research if you want to become a claims adjudicator. You may be responsible for investigating some claims, which could require you to ask questions that could make you uncomfortable.