Z23Need for immunization against single bacterial diseases
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 Z23 directly
Use the most specific code supported by the record.
- Official Vietnamese name
- Nhu cầu tiêm chủng phòng các bệnh nhiễm khuẩn đơn lẻ
- Additional WHO coding guidance
- Excl.: immunization: against combinations of diseases (Z27.-) not carried out (Z28.-)
Related Z23 codes
Z23.0
Primary diagnosis candidate
Need for immunization against cholera alone
Z23.1
Primary diagnosis candidate
Need for immunization against typhoid- paratyphoid alone [TAB]
Z23.2
Primary diagnosis candidate
Need for immunization against tuberculosis [BCG]
Z23.3
Primary diagnosis candidate
Need for immunization against plague
Z23.4
Primary diagnosis candidate
Need for immunization against tularaemia
Z23.5
Primary diagnosis candidate
Need for immunization against tetanus alone
Z23.6
Primary diagnosis candidate
Need for immunization against diphtheria alone
Z23.7
Primary diagnosis candidate
Need for immunization against pertussis alone
Z23.8
Primary diagnosis candidate
Need for immunization against other single bacterial diseases
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.
