Other Specified Feeding or Eating Disorder & Unspecified Feeding or Eating Disorder

Other Specified Feeding or Eating Disorder (OSFED)

Previously referred to as Eating Disorder – Not Otherwise Specified (EDNOS), Other Specified Feeding or Eating Disorder (OSFED) covers all eating and feeding disorders which cause distress but do not currently meet criteria for another feeding or eating disorder such as anorexia nervosa, bulimia nervosa, binge eating disorder, or avoidant/restrictive food intake disorder.

There are 5 subtypes of OSFED:

1. Atypical Anorexia Nervosa i.e. anorexic features without low weight

2. Bulimia Nervosa of low frequency and/or limited duration

3. Binge Eating Disorder of low frequency and/or limited duration

4. Purging Disorder: a person purges but does not binge

5. Night Eating Syndrome: there is a disturbance in a person’s sleep-wake cycle that causes them to consume most of their calories in the evening or wake up during the night to eat.

Unspecified Feeding or Eating Disorder (UFED)

There  may be people who are struggling with food or eating who do not fit into one of the five OSFED categories or for whom there is not enough information to make a specific diagnosis.


Although these may seem like ‘catchall’ categories, these disorders can still be physically dangerous and emotionally difficult for the people struggling with them. Being able to provide a diagnosis to someone who is clearly struggling can also provide validation and possibly more coverage for treatment. As well, it provides professionals and researchers a language to talk about and research other types of disordered eating.


All eating disorders require professional help.


If you think you may have an eating disorder, call our office to find out more about services available in the Ottawa Community.


Information from various sources including:

Thomas, J.J. (2013). Goodbye EDNOS, Hello OSFED: Subthreshold and Atypical Eating Disorders in DSM-5. Retrieved from http://www.jennischaefer.com/blog/eating-and-body-image/goodbye-ednos-hello-osfed-subthreshold-and-atypical-eating-disorders-in-dsm-5/.

Michelle Neville, RN, BScM, BEd. Mental Health and Addictions Specialist, Champlain CCAC.

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