ICD-10 Code F50.029 – Anorexia nervosa, binge eating/purging type, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F50.029 – Anorexia nervosa, binge eating/purging type, unspecified
What it is
This code identifies anorexia nervosa with both binge-eating and purging behaviors, when the subtype is not further specified. Use it for documented eating-disorder presentations that include restrictive intake plus compensatory behaviors.
Clinical signs
Common features include fear of weight gain, distorted body image, and episodes of binge eating followed by purging. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents anorexia nervosa with binge eating and purging, but does not name another more specific subtype. It also fits when the record confirms the disorder and the subtype remains unspecified. You should code from the provider’s wording, not from assumptions.
Do not use for
Do not use this code for anorexia nervosa without binge-eating or purging behaviors, or for bulimia nervosa. Check documentation if the chart only notes disordered eating, weight loss, or poor appetite.
Coding tip
Assign the unspecified code only when the documentation supports anorexia nervosa and does not provide a more specific subtype.