Y43Primarily systemic agents
Code usage status
Primary diagnosis
Must not be used as the primary diagnosis
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use Y43 directly
Use the most specific code supported by the record.
- Group Y40-Y84
- Complications of medical and surgical care
- Official Vietnamese name
- Tác động bất lợi của tác nhân tác dụng toàn thân chủ yếu
- Additional WHO coding guidance
- Excl.: vitamins NEC (Y57.7)
Related Y43 codes
Y43.0
Antiallergic and antiemetic drugs
Y43.1
Antineoplastic antimetabolites
Y43.2
Antineoplastic natural products
Y43.3
Other antineoplastic drugs
Y43.4
Immunosuppressive agents
Y43.5
Acidifying and alkalizing agents
Y43.6
Enzymes, not elsewhere classified
Y43.8
Other primarily systemic agents, not elsewhere classified
Y43.9
Primarily systemic agent, 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.
