K40Inguinal hernia
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 K40 directly
Use the most specific code supported by the record.
- Chapter XI
- Diseases of the digestive system
- Group K40-K46
- Hernia
- Official Vietnamese name
- Thoát vị bẹn
- Additional WHO coding guidance
- Incl.: bubonocele inguinal hernia: NOS direct double indirect oblique scrotal hernia
Related K40 codes
K40.0
Primary diagnosis candidate
Bilateral inguinal hernia, with obstruction, without gangrene
K40.1
Primary diagnosis candidate
Bilateral inguinal hernia, with gangrene
K40.2
Primary diagnosis candidate
Bilateral inguinal hernia, without obstruction or gangrene
K40.3
Primary diagnosis candidate
Unilateral or unspecified inguinal hernia, with obstruction, without gangrene
K40.4
Primary diagnosis candidate
Unilateral or unspecified inguinal hernia, with gangrene
K40.9
Primary diagnosis candidate
Unilateral or unspecified inguinal hernia, without obstruction or gangrene
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.
