T43.011ABillable
Poisoning by tricyclic antidepressants, accidental (unintentional), initial encounter
Short description: Poisoning by tricyclic antidepressants, accidental, init
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- T43
- Effective date
- October 1, 2026
Related codes in category T43
T43Psychotropic drugs, not elsewhere classifiedT43.0Tricyclic and tetracyclic antidepressantsT43.01Tricyclic antidepressantsT43.011Poisoning by tricyclic antidepressants, accidentalT43.011DPoisoning by tricyclic antidepressants, accidental, subsYesT43.011SPoisoning by tricyclic antidepressants, accidental, sequelaYesT43.012Poisoning by tricyclic antidepressants, self-harmT43.012APoisoning by tricyclic antidepressants, self-harm, initYesT43.012DPoisoning by tricyclic antidepressants, self-harm, subsYesT43.012SPoisoning by tricyclic antidepressants, self-harm, sequelaYesT43.013Poisoning by tricyclic antidepressants, assaultT43.013APoisoning by tricyclic antidepressants, assault, init encntrYes
Frequently asked questions
What is ICD-10 code T43.011A?
T43.011A is an ICD-10-CM diagnosis code for Poisoning by tricyclic antidepressants, accidental (unintentional), initial encounter.
Is T43.011A a billable code?
Yes. T43.011A is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is T43.011A in?
T43.011A falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did T43.011A become effective?
T43.011A has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to T43.011A?
T43.011A belongs to category T43, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.