H40Glaucoma
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 H40 directly
Use the most specific code supported by the record.
- Chapter VII
- Diseases of the eye and adnexa
- Group H40-H42
- Glaucoma
- Official Vietnamese name
- Glôcôm
- Additional WHO coding guidance
- Excl.: absolute glaucoma (H44.5) congenital glaucoma (Q15.0) traumatic glaucoma due to birth
Related H40 codes
H40.0
Primary diagnosis candidate
Glaucoma suspect
H40.1
Primary diagnosis candidate
Primary open- angle glaucoma
H40.2
Primary diagnosis candidate
Primary angle- closure glaucoma
H40.3
Primary diagnosis candidate
Glaucoma secondary to eye trauma
H40.4
Primary diagnosis candidate
Glaucoma secondary to eye inflammation
H40.5
Primary diagnosis candidate
Glaucoma secondary to other eye disorders
H40.6
Primary diagnosis candidate
Glaucoma secondary to drugs
H40.8
Primary diagnosis candidate
Other glaucoma
H40.9
Primary diagnosis candidate
Glaucoma, 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.
