T40.1 is the ICD-10 code for Poisoning: Heroin. It is a four-character subcategory of T40 (Poisoning by narcotics and psychodysleptics [hallucinogens]), 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
T40.1 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
T40.1Heroin
DT401Forgiftning med heroin
T40.1Heroiinin myrkkyvaikutukset
T40.1Heroin
T40.1Héroïne
T40.1heroïne
Listed through more specific codes:
- T40.1X1APoisoning by heroin, accidental (unintentional), initial encounter
- T40.1X1DPoisoning by heroin, accidental (unintentional), subsequent encounter
- T40.1X1SPoisoning by heroin, accidental (unintentional), sequela
- T40.1X2APoisoning by heroin, intentional self-harm, initial encounter
- T40.1X2DPoisoning by heroin, intentional self-harm, subsequent encounter
- T40.1X2SPoisoning by heroin, intentional self-harm, sequela
- T40.1X3APoisoning by heroin, assault, initial encounter
- T40.1X3DPoisoning by heroin, assault, subsequent encounter
- and 4 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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