K05.0Acute gingivitis
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 XI
- Diseases of the digestive system
- Group K00-K14
- Diseases of oral cavity, salivary glands and jaws
- Official Vietnamese name
- Viêm lợi [nướu] cấp tính
- Additional WHO coding guidance
- Excl.: acute necrotizing ulcerative gingivitis (A69.1) herpesviral [herpes simplex] gingivostomatitis (B00.2)
Related K05 codes
K05
Gingivitis and periodontal diseases
K05.1
Primary diagnosis candidate
Chronic gingivitis
K05.2
Primary diagnosis candidate
Acute periodontitis
K05.3
Primary diagnosis candidate
Chronic periodontitis
K05.4
Primary diagnosis candidate
Periodontosis
K05.5
Primary diagnosis candidate
Other periodontal diseases
K05.6
Primary diagnosis candidate
Periodontal disease, 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.
