L56.3Solar urticaria
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 XII
- Diseases of the skin and subcutaneous tissue
- Official Vietnamese name
- Bệnh mày đay do ánh nắng
Related L56 codes
L56
Other acute skin changes due to ultraviolet radiation
L56.0
Primary diagnosis candidate
Drug phototoxic response
L56.1
Primary diagnosis candidate
Drug photoallergic response
L56.2
Primary diagnosis candidate
Photocontact dermatitis [berloque dermatitis]
L56.4
Primary diagnosis candidate
Polymorphous light eruption
L56.8
Primary diagnosis candidate
Other specified acute skin changes due to ultraviolet radiation
L56.9
Primary diagnosis candidate
Acute skin change due to ultraviolet radiation, 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.
