ICD10BillableValid for clinical use

ICD-10 Code T43.201: Poisoning by unspecified antidepressants, accidental (unintentional)

T43.201 is a billable ICD-10 diagnosis code used to classify Poisoning by unspecified antidepressants, accidental (unintentional) in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Injury, poisoning and certain other consequences of external causes (S00-T88).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Injury, poisoning and certain other consequences of external causes (S00-T88).

When is it used?

  • May be used when a clinician documents poisoning by unspecified antidepressants, accidental (unintentional) in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
19Injury, poisoning and certain other consequences of external causes (S00-T88)
block
T07-T88Injury, poisoning and certain other consequences of external causes
block
T36-T50Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances
category
T43Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
category
T43.2Poisoning by, adverse effect of and underdosing of other and unspecified antidepressants
category
T43.20Poisoning by, adverse effect of and underdosing of unspecified antidepressants
currentT43.20

Official coding notes

Inclusion terms
  • Poisoning by antidepressants NOS

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Emergency Medicine SpecialistOrthopedic Specialist

Coding guidelines

Common synonyms

Poisoning by unspecified antidepressants, accidental (unintentional)Poisoning by antidepressants, accidental (unintentional)Poisoning by unspecified antidepressants, accidentalPoisoning by unspecified antidepressants, accidental unintentional

Frequently asked questions

Code details

CodeT43.201
SystemICD10
Display namePoisoning by unspecified antidepressants, accidental (unintentional)
ChapterInjury, poisoning and certain other consequences of external causes (S00-T88)
BlockPoisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code T43.201 for Poisoning by unspecified antidepressants, accidental (unintentional) | HealthAssure