T46 ICD-10-CM Code: Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
T46Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
ICD-10-CM diagnosis code · United States clinical modification
Where T46 sits
- 1
Chapter 19
Injury, poisoning and certain other consequences of external causes (S00-T88)
- 2
Section
Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)
- 3
Category T46
Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
- 4
Code T46
Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
Codes under T46
T46 is a non-billable category. Choose the child code that best matches the documented diagnosis.
T46.0Poisoning by, adverse effect of and underdosing of cardiac-stimulant glycosides and drugs of similar actionT46.1Poisoning by, adverse effect of and underdosing of calcium-channel blockersT46.2Poisoning by, adverse effect of and underdosing of other antidysrhythmic drugs, not elsewhere classifiedT46.3Poisoning by, adverse effect of and underdosing of coronary vasodilatorsT46.4Poisoning by, adverse effect of and underdosing of angiotensin-converting-enzyme inhibitorsT46.5Poisoning by, adverse effect of and underdosing of other antihypertensive drugsT46.6Poisoning by, adverse effect of and underdosing of antihyperlipidemic and antiarteriosclerotic drugsT46.7Poisoning by, adverse effect of and underdosing of peripheral vasodilatorsT46.8Poisoning by, adverse effect of and underdosing of antivaricose drugs, including sclerosing agentsT46.9Poisoning by, adverse effect of and underdosing of other and unspecified agents primarily affecting the cardiovascular systemNotes for this code
Inclusion terms
No inclusion terms are listed for T46.
Code first
No “code first” instruction is listed for T46.
Use additional code
No “use additional code” instruction is listed for T46.
Excludes1
Conditions that should not be reported together with this code.
- poisoning by, adverse effect of and underdosing of metaraminol (T44.4)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for T46.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code T46 mean?
T46 is the FY 2027 U.S. ICD-10-CM code for “Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system.”
Is T46 a billable or specific ICD-10-CM code?
No. T46 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is T46 located in ICD-10-CM?
T46 is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50) (T36–T50), under category T46, Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system.
What coding notes are listed for T46?
No inclusion terms are listed for T46 in this reference record. No code-first instruction is listed. Excludes1 notes: poisoning by, adverse effect of and underdosing of metaraminol (T44.4). No Excludes2 note is listed.