T40.3 is the ICD-10 code for Poisoning: Methadone. 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
T40.3 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
T40.3Metadon
DT403Forgiftning med metadon
T40.3Metadonin myrkkyvaikutukset
T40.3Methadon
T40.3Méthadone
T40.3methadon
Listed through more specific codes:
- T40.3X1APoisoning by methadone, accidental (unintentional), initial encounter
- T40.3X1DPoisoning by methadone, accidental (unintentional), subsequent encounter
- T40.3X1SPoisoning by methadone, accidental (unintentional), sequela
- T40.3X2APoisoning by methadone, intentional self-harm, initial encounter
- T40.3X2DPoisoning by methadone, intentional self-harm, subsequent encounter
- T40.3X2SPoisoning by methadone, intentional self-harm, sequela
- T40.3X3APoisoning by methadone, assault, initial encounter
- T40.3X3DPoisoning by methadone, 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.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free