Z03.6Observation for suspected toxic effect from ingested substance
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.
- Official Vietnamese name
- Theo dõi khi nghi ngờ tác dụng độc của chất được nuốt vào
- Additional WHO coding guidance
- Observation for suspected: adverse effect from drug poisoning
Related Z03 codes
Z03
Medical observation and evaluation for suspected diseases and conditions, ruled out
Z03.0
Primary diagnosis candidate
Observation for suspected tuberculosis
Z03.1
Primary diagnosis candidate
Observation for suspected malignant neoplasm
Z03.2
Primary diagnosis candidate
Observation for suspected mental and behavioural disorders
Z03.3
Primary diagnosis candidate
Observation for suspected nervous system disorder
Z03.4
Primary diagnosis candidate
Observation for suspected myocardial infarction
Z03.5
Primary diagnosis candidate
Observation for other suspected cardiovascular diseases
Z03.8
Primary diagnosis candidate
Observation for other suspected diseases and conditions
Z03.9
Primary diagnosis candidate
Observation for suspected disease or condition, 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.
