Eating disorder not otherwise specified Eating disorder not otherwise specified Eating disorder not otherwise specified (EDNOS) is an eating disorder that is no longer recognized in the most recent version of the "Diagnostic and Statistical Manual of Mental Disorders" (DSM). In 2013, it was replaced by other specified feeding or eating disorder (OSFED) in DSM-5. Eating disorder not otherwise specified is an eating disorder that does not meet the criteria for: anorexia nervosa or bulimia nervosa. Individuals with EDNOS usually fall into one of three groups: sub-threshold symptoms of anorexia or bulimia, mixed features of both disorders, or extremely atypical eating behaviors that are not
Other specified feeding or eating disorder system, the prevalence still remains high. For example, in a population of 215 young patients presenting for ED treatment, the diagnosis of EDNOS to OSFED decreased from 62.3% to 32.6%. In another study of 240 females in the U.S. with a lifetime history of an eating disorder, the prevalence changed from 67.9% EDNOS to 53.3% OSFED. Although the prevalence appears to reduce when using the categorizations of EDNOS vs. OSFED, a high proportion of cases still receive diagnoses of atypical eating disorders, which creates difficulties in communication, treatment planning, and basic research. Few studies guide the treatment of individuals with