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ICD-10 diagnosis code

T42.6 Poisoning: Other antiepileptic and sedative-hypnotic drugs

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T42.6 is the ICD-10 code for Poisoning: Other antiepileptic and sedative-hypnotic drugs. It is a four-character subcategory of T42 (Poisoning by antiepileptic, sedative-hypnotic and antiparkinsonism drugs), the most specific level in the WHO edition. It belongs to the block T36–T50 (Poisoning by drugs, medicaments and biological substances) in Chapter XIX, Injury, poisoning and certain other consequences of external causes.

Code type
Subcategory (4 characters)
Chapter
XIX · S00–T98
Classification
WHO ICD-10, 2019 version

What T42.6 includes

Conditions and terms that are coded here.

  • Methaqualone
  • Valproic acid

What T42.6 excludes

Conditions that look similar but belong under another code.

T42.6 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

T42.6Andra antiepileptika, lugnande medel och sömnmedel

DenmarkICD-10-DK

DT426Forgiftning andet antiepileptikum, sovemiddel eller beroligende middel

GermanyICD-10-GM

T42.6Sonstige Antiepileptika, Sedativa und Hypnotika

FranceICD-10-FR

T42.6Autres antiépileptiques, sédatifs et hypnotiques

NetherlandsICD-10-NL

T42.6overige gespecificeerde anti-epileptica, sedativa en hypnotica

United StatesICD-10-CM

Listed through more specific codes:

  • T42.6X1APoisoning by other antiepileptic and sedative-hypnotic drugs, accidental (unintentional), initial encounter
  • T42.6X1DPoisoning by other antiepileptic and sedative-hypnotic drugs, accidental (unintentional), subsequent encounter
  • T42.6X1SPoisoning by other antiepileptic and sedative-hypnotic drugs, accidental (unintentional), sequela
  • T42.6X2APoisoning by other antiepileptic and sedative-hypnotic drugs, intentional self-harm, initial encounter
  • T42.6X2DPoisoning by other antiepileptic and sedative-hypnotic drugs, intentional self-harm, subsequent encounter
  • T42.6X2SPoisoning by other antiepileptic and sedative-hypnotic drugs, intentional self-harm, sequela
  • T42.6X3APoisoning by other antiepileptic and sedative-hypnotic drugs, assault, initial encounter
  • T42.6X3DPoisoning by other antiepileptic and sedative-hypnotic drugs, assault, subsequent encounter
  • and 10 more national subcodes

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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