Anorexia nervosa was included in DSM 5 (2013) in the broader diagnostic category called Nutrition and Eating Disorders.
The main characteristic of this disorder is food refusal. The term anorexia (literally lack of appetite) is incorrect to describe a disorder in which appetite is in most cases preserved. Rather what characterizes the anorexic person is the terror of gaining weight and the need to control eating in pursuit of thinness.