Eating disorder not otherwise specified and clinically-significant disordered eating behaviors that are not described by anorexia and bulimia. EDNOS is no longer considered a diagnosis in DSM-5. Because some diagnostic criteria were loosened and new diagnoses were introduced in DSM-5, those displaying symptoms of what would previously have been considered EDNOS are now classified under Anorexia Nervosa, Bulimia Nervosa, Binge Eating Disorder, Other Specified Feeding or Eating Disorder, or Unspecified Feeding or Eating Disorder. Although EDNOS (formerly called atypical eating disorder) was originally introduced in DSM-III to capture unusual cases, it accounts for up to 60% of cases in eating disorder specialty clinics. EDNOS is
Eating disorder scans have been used to detect cases in which a lesion, tumor or other organic condition has been either the sole causative or contributory factor in an eating disorder. "Right frontal intracerebral lesions with their close relationship to the limbic system could be causative for eating disorders, we therefore recommend performing a cranial MRI in all patients with suspected eating disorders" (Trummer M "et al." 2002), "intracranial pathology should also be considered however certain is the diagnosis of early-onset anorexia nervosa. Second, neuroimaging plays an important part in diagnosing early-onset anorexia nervosa, both from a clinical and a research prospective".(O'Brien