EDNOS Diagnostic Criteria from DSM IV.

Eating Disorder Not Otherwise Specified

This diagnosis includes disorders of eating that do not meet the criteria for the above
two eating disorder diagnoses. Examples include 

1. For female patients, all of the criteria for Anorexia Nervosa are met except that the patient has regular menses.
2. All of the criteria for Anorexia Nervosa are met except that, despite significant
   weight loss, the patient's current weight is in the normal range.
3. All of the criteria for Bulimia Nervosa are met except that the binge eating and
   inappropriate compensatory mechanisms occur less than twice a week or for less than 3 months.
4. The patient has normal body weight and regularly uses inappropriate compensatory
   behavior after eating small amounts of food (e.g., self-induced vomiting after
   consuming two cookies).
5. The patient engages in repeatedly chewing and spitting out, but not swallowing,
   large amounts of food.
6. Binge-eating disorder: recurrent episodes of binge eating in the absence if regular
   inappropriate compensatory behavior characteristic of Bulimia Nervosa.

(Source: Eating Disorder Diagnostic Criteria from DSM-IV)