H10.9Conjunctivitis, unspecified
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 H10-H13
- Disorders of conjunctiva
- Official Vietnamese name
- Viêm kết mạc, không xác định
Related H10 codes
H10
Conjunctivitis
H10.0
Primary diagnosis candidate
Mucopurulent conjunctivitis
H10.1
Primary diagnosis candidate
Acute atopic conjunctivitis
H10.2
Primary diagnosis candidate
Other acute conjunctivitis
H10.3
Primary diagnosis candidate
Acute conjunctivitis, unspecified
H10.4
Primary diagnosis candidate
Chronic conjunctivitis
H10.5
Primary diagnosis candidate
Blepharoconjunctivi tis
H10.8
Primary diagnosis candidate
Other conjunctivitis
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.
