L04Acute lymphadenitis
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 L04 directly
Use the most specific code supported by the record.
- Chapter XII
- Diseases of the skin and subcutaneous tissue
- Group L00-L08
- Infections of the skin and subcutaneous tissue
- Official Vietnamese name
- Viêm hạch bạch huyết cấp tính
- Additional WHO coding guidance
- Incl.: abscess (acute) any lymph node, except mesenteric lymphadenitis, acute any lymph node, except mesenteric Excl.: enlarged lymph nodes (R59.-) human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B23.1) lymphadenitis: NOS (I88.9) chronic or subacute, except mesenteric (I88.1) mesenteric, nonspecific (I88.0)
Related L04 codes
L04.0
Primary diagnosis candidate
Acute lymphadenitis of face, head and neck
L04.1
Primary diagnosis candidate
Acute lymphadenitis of trunk
L04.2
Primary diagnosis candidate
Acute lymphadenitis of upper limb
L04.3
Primary diagnosis candidate
Acute lymphadenitis of lower limb
L04.8
Primary diagnosis candidate
Acute lymphadenitis of other sites
L04.9
Primary diagnosis candidate
Acute lymphadenitis, 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.
