Form 8843, Statement for Exempt Individuals and Individuals with a Medical Condition

If you are an alien individual (other than a foreign government-related individual), you must file Form 8843, Statement for Exempt Individuals and Individuals with a Medical Condition, to explain the basis of your claim that you can exclude days of presence in the United States for purposes of the substantial presence test because you were an exempt individual, or were unable to leave the United States because of a medical condition or medical problem.