E66Obesity
Code usage status
Primary diagnosis
Select a more specific code
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use E66 directly
Use the most specific code supported by the record.
- Group E65-E68
- Obesity and other hyperalimentation
- Official Vietnamese name
- Bệnh béo phì
- Additional WHO coding guidance
- Excl.: adiposogenital dystrophy (E23.6) lipomatosis: NOS (E88.2) dolorosa [Dercum] (E88.2) Prader-Willi syndrome (Q87.1)
Related E66 codes
E66.0
Primary diagnosis candidate
Obesity due to excess calories
E66.1
Primary diagnosis candidate
Drug-induced obesity
E66.2
Primary diagnosis candidate
Extreme obesity with alveolar hypoventilation
E66.8
Primary diagnosis candidate
Other obesity
E66.9
Primary diagnosis candidate
Obesity, unspecified Simple obesity NOS
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.
