H34Retinal vascular occlusions
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 H34 directly
Use the most specific code supported by the record.
- Chapter VII
- Diseases of the eye and adnexa
- Group H30-H36
- Disorders of choroid and retina
- Official Vietnamese name
- Tắc mạch máu võng mạc
- Additional WHO coding guidance
- Excl.: amaurosis fugax (G45.3)
Related H34 codes
H34.0
Primary diagnosis candidate
Transient retinal artery occlusion
H34.1
Primary diagnosis candidate
Central retinal artery occlusion
H34.2
Primary diagnosis candidate
Other retinal artery occlusions
H34.8
Primary diagnosis candidate
Other retinal vascular occlusions
H34.9
Primary diagnosis candidate
Retinal vascular occlusion, 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.
