Homesickness is defined as distress and functional impairment caused by an actual or anticipated separation from home and attachment objects such as parents. According to the taxonomy of the American Psychiatric Association, severe homesickness may be best classified as adjustment disorder with mixed anxiety and depressed mood (diagnostic code 309.28).7,8 The defining feature of homesickness is recurrent cognitions that are focused on home (eg, house, loved ones, homeland, home cooking, returning home), and the precipitating stressor is always an anticipated or actual separation from home. Therefore, it is possible to distinguish homesickness from all other kinds of anxiety disorders, mood disorders, or adjustment disorders as well as from separation distress that young people may feel when caregivers leave home (eg, for work, military service, divorce, incarceration).9,10 Homesickness may also be comorbid with other behavioral, emotional, cognitive, and physical problems that warrant clinical attention.