F50.3Atypical bulimia nervosa
Code usage status
Primary diagnosis
May be used as the primary diagnosis
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Complete code in the classification
Use when the diagnosis matches and no exclusion applies.
- Chapter V
- Mental and behavioural disorders
- Official Vietnamese name
- Chứng ăn bừa bãi không điển hình
- Additional WHO coding guidance
- Disorders that fulfil some of the features of bulimia nervosa, but in which the overall clinical picture does not justify that diagnosis. For instance, there may be recurrent bouts of overeating and overuse of purgatives without significant weight change, or the typical overconcern about body shape and weight may be absent.
Related F50 codes
F50
Eating disorders
F50.0
Primary diagnosis candidate
Anorexia nervosa
F50.1
Primary diagnosis candidate
Atypical anorexia nervosa
F50.2
Primary diagnosis candidate
Bulimia nervosa
F50.4
Primary diagnosis candidate
Overeating associated with other psychological disturbances
F50.5
Primary diagnosis candidate
Vomiting associated with other psychological disturbances
F50.8
Primary diagnosis candidate
Other eating disorders
F50.9
Primary diagnosis candidate
Eating disorder, unspecified
Clinical record checklist
View coding guide →- Confirm that the code matches the final documented diagnosis.
- Use one primary-diagnosis code and record only relevant additional conditions.
- Review Ministry indicators, inclusions, exclusions and notes.
- Do not infer a diagnosis beyond the clinical record.
2026 regulatory basis
Indicators are taken from columns 24–29 of the classification accompanying Circular 06/2026/TT-BYT, cross-referenced with Decision 1849/QĐ-BYT and Official Dispatch 4059/BYT-BH.
