T46.1Calcium-channel blockers
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
- Ngộ độc thuốc chẹn kênh canxi
Related T46 codes
T46
Poisoning by agents primarily affecting the cardiovascular system
T46.0
Primary diagnosis candidate
Cardiac-stimulant glycosides and drugs of similar action
T46.2
Primary diagnosis candidate
Other antidysrhythmic drugs, not elsewhere classified
T46.3
Primary diagnosis candidate
Coronary vasodilators, not elsewhere classified
T46.4
Primary diagnosis candidate
Angiotensin- converting-enzyme inhibitors
T46.5
Primary diagnosis candidate
Other antihypertensive drugs, not elsewhere classified
T46.6
Primary diagnosis candidate
Antihyperlipidaemi c and antiarteriosclerotic drugs
T46.7
Primary diagnosis candidate
Peripheral vasodilators
T46.8
Primary diagnosis candidate
Antivaricose drugs, including sclerosing agents
T46.9
Primary diagnosis candidate
Other and unspecified agents primarily affecting the cardiovascular system
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.
