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
Other specified feeding or eating disorder can be considered eating disorders include atypical AN, BN (of low frequency and/or limited duration), BED (of low frequency and/or limited duration), purging disorder, and NES. Of note, OSFED is not limited to these five examples, and can include individuals with heterogeneous eating disorder presentations (i.e., OSFED-other). Another term, Unspecified Feeding or Eating Disorder (UFED), is used to describe individuals for whom full diagnostic criteria are not met but the reason remains unspecified or the clinician does not have adequate information to make a more definitive diagnosis. Few studies to date have examined OSFED prevalence. The largest community study is