Bulimia nervosa

Self-induced weight loss to less than 80 percent of expected minimum weight, with incapacitating episodes of at least six weeks total duration per year, and requiring hospitalization more than twice a year for parenteral nutrition or tube feeding.

This level requires the listed weight threshold, duration of incapacitating episodes, and hospitalization/tube-feeding criteria.

Self-induced weight loss to less than 85 percent of expected minimum weight with incapacitating episodes of six or more weeks total duration per year.

This level combines the listed weight threshold with at least six weeks of incapacitating episodes per year.

Self-induced weight loss to less than 85 percent of expected minimum weight with incapacitating episodes of more than two but less than six weeks total duration per year.

This level combines the listed weight threshold with more than two but less than six weeks of incapacitating episodes.

Binge eating followed by self-induced vomiting or other measures to prevent weight gain, or resistance to weight gain even when below expected minimum weight, with diagnosis of an eating disorder and incapacitating episodes of up to two weeks total duration per year.

This level addresses the listed diagnosed eating-disorder behavior with up to two weeks of incapacitating episodes.

Binge eating followed by self-induced vomiting or other measures to prevent weight gain, or resistance to weight gain even when below expected minimum weight, with diagnosis of an eating disorder but without incapacitating episodes.

A diagnosed eating disorder is present without incapacitating episodes.