H21.0Hyphaema
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 VII
- Diseases of the eye and adnexa
- Group H15-H22
- Disorders of sclera, cornea, iris and ciliary body
- Official Vietnamese name
- Xuất huyết tiền phòng
- Additional WHO coding guidance
- Excl.: traumatic hyphaema (S05.1)
Related H21 codes
H21
Other disorders of iris and ciliary body
H21.1
Primary diagnosis candidate
Other vascular disorders of iris and ciliary body
H21.2
Primary diagnosis candidate
Degeneration of iris and ciliary body
H21.3
Primary diagnosis candidate
Cyst of iris, ciliary body and anterior chamber
H21.4
Primary diagnosis candidate
Pupillary membranes
H21.5
Primary diagnosis candidate
Other adhesions and disruptions of iris and ciliary body
H21.8
Primary diagnosis candidate
Other specified disorders of iris and ciliary body
H21.9
Primary diagnosis candidate
Disorder of iris and ciliary body, 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.
