T40.0 is the ICD-10 code for Poisoning: Opium. 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
T40.0 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
T40.0Opium
DT400Forgiftning med opium
T40.0Oopiumin myrkkyvaikutukset
T40.0Opium
T40.0Opium
T40.0opium
Listed through more specific codes:
- T40.0X1APoisoning by opium, accidental (unintentional), initial encounter
- T40.0X1DPoisoning by opium, accidental (unintentional), subsequent encounter
- T40.0X1SPoisoning by opium, accidental (unintentional), sequela
- T40.0X2APoisoning by opium, intentional self-harm, initial encounter
- T40.0X2DPoisoning by opium, intentional self-harm, subsequent encounter
- T40.0X2SPoisoning by opium, intentional self-harm, sequela
- T40.0X3APoisoning by opium, assault, initial encounter
- T40.0X3DPoisoning by opium, 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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