Social Security defines disability as having a severe medically determinable impairment that has lasted or is expected to last at least one year. So a couple of things about that:
First, your condition has to be pretty severe. It has to be so severe it has to keep you from being able to do eight hours of work a day, five days a week, full-time employment.
Next is the one-year requirement. Your condition has to be expected to last a year or has already lasted at least one year, which means it does not include medical conditions that are expected to improve within 12 months. That excludes a lot of claims.