Table 1

Eating disorder classifications

ICD-11essential features onlyDSM-V official features
Anorexia nervosa
  • Significantly low weight (BMI <18.5 kg/m2)/rapid weight loss

  • Persistent attempt to create calorie deficit

  • Overvalued low body weight

Anorexia nervosa
  • Significantly low weight and persistent attempt to create calorie deficit

  • Intense fear of weight gain

  • Disturbance of own body image perception

Bulimia nervosa
  • Frequent binge eating episodes (once a week for at least a month)

  • Repeat inappropriate compensatory behaviours to prevent weight gain (once a week for at least a month)

  • Distress around bingeing/compensation

  • Not meeting anorexia nervosa definition

Bulimia nervosa
  • Frequent binge eating episodes (around once a week for 3 months)

  • Repeat inappropriate compensatory behaviours to prevent weight gain

  • Unduly influenced by body image

  • Bingeing not exclusively during anorexia nervosa

Binge eating disorder
  • Frequent binge eating episodes (once a week for at least 3 months)

  • No regular compensatory behaviours to prevent weight gain

  • No medical/other mental health explanation binges

  • Distress around bingeing

Binge eating disorder
  • Frequent binge eating episodes (at least once a week for 3 months)

  • Binges involve three or more of: eating rapidly/eating until uncomfortably full/eating large amounts when not hungry/eating alone due to embarrassment over volume of consumption/feeling disgusted, depressed or guilty afterwards

  • Distress around bingeing

  • No regular compensatory behaviours to prevent weight gain

Avoidant-restrictive food intake disorder
  • Avoidance/restriction of intake leading to one or both of: significant nutritional consequences/negative social consequences

  • Eating pattern unrelated to body image preoccupation

  • Unavailability of food/another illness is not a causal factor

Avoidant-restrictive food intake disorder
  • Avoidance/restriction of intake leading to one or more of: nutritional deficiency/weight loss/need for alternative feeding routes/negative social consequences

  • Unavailability of food/cultural or social norm is not a causal factor

  • Not exclusively as part of another eating disorder or with body image issues

  • If another medical/mental health condition considered related, symptoms sufficiently severe to warrant specific attention

Unspecified feeding or eating disorder
  • Characteristics of eating disorders however not fully fitting the diagnostic labels

  • BMI, body mass index; DSM-V, Diagnostic and Statistical Manual of Mental Disorders-5; ICD, International Classification of Diseases.