T46 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system.
Type 1 excludes
Poisoning by, adverse effect of and underdosing of metaraminol (T44.4)
Seventh character note
The appropriate 7th character is to be added to each code from category T46
Seventh character extensions
A: initial encounter
D: subsequent encounter
S: sequela
Codes
T46.0
Poisoning by, adverse effect of and underdosing of cardiac-stimulant glycosides and drugs of similar action
T46.1
Poisoning by, adverse effect of and underdosing of calcium-channel blockers
T46.2
Poisoning by, adverse effect of and underdosing of other antidysrhythmic drugs, not elsewhere classified
T46.3
Poisoning by, adverse effect of and underdosing of coronary vasodilators
T46.4
Poisoning by, adverse effect of and underdosing of angiotensin-converting-enzyme inhibitors
T46.5
Poisoning by, adverse effect of and underdosing of other antihypertensive drugs
T46.6
Poisoning by, adverse effect of and underdosing of antihyperlipidemic and antiarteriosclerotic drugs
T46.7
Poisoning by, adverse effect of and underdosing of peripheral vasodilators
T46.8
Poisoning by, adverse effect of and underdosing of antivaricose drugs, including sclerosing agents
T46.9
Poisoning by, adverse effect of and underdosing of other and unspecified agents primarily affecting the cardiovascular system
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code