The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), published by the American Psychiatric Association, includes detailed criteria for the diagnosis of eating disorders. The DSM-5 states that an eating disorder is characterized by a persistent disturbance of eating or eating-related behavior that results in the altered consumption or absorption of food and that significantly impairs physical health or psychosocial functioning.
Eating disorders can be divided into three categories: Anorexia Nervosa, Bulimia Nervosa, and Other Specified Feeding or Eating Disorders (OSFED). Anorexia Nervosa is characterized by a refusal to maintain a healthy body weight, an intense fear of gaining weight, and a distorted body image. Bulimia Nervosa is characterized by binge eating and purging behaviors, such as self-induced vomiting or laxative use, in an effort to control weight or shape. OSFED is used to diagnose individuals who meet some, but not all, of the criteria for Anorexia Nervosa or Bulimia Nervosa.
The DSM-5 also specifies that an eating disorder diagnosis should take into account the presence of associated psychological features, such as low self-esteem, depression, anxiety, and body dissatisfaction. In addition, the DSM-5 criteria emphasize the importance of assessing for medical complications, such as electrolyte imbalances or cardiac problems, which are common among individuals with eating disorders.
Overall, the DSM-5 provides a comprehensive set of criteria for the diagnosis of eating disorders. This manual allows clinicians to make an accurate diagnosis, which is essential for the initiation of appropriate treatment.