World Health Organization · 2026-01 · English
Unintentional exposure to or harmful effects of drugs, medicaments or biological substances
Official WHO ICD-11 MMS tabulation. This international classification is separate from US ICD-10-CM. For complete instructions and postcoordination, consult the WHO browser.
More specific codes
PB20Unintentional exposure to or harmful effects of opioids or related analgesicsPB21Unintentional exposure to or harmful effects of sedative hypnotic drugs or other CNS depressantsPB22Unintentional exposure to or harmful effects of psychostimulantsPB23Unintentional exposure to or harmful effects of cannabinoids or hallucinogensPB24Unintentional exposure to or harmful effects of analgesics, antipyretics or nonsteroidal anti-inflammatory drugsPB25Unintentional exposure to or harmful effects of antidepressantsPB26Unintentional exposure to or harmful effects of antipsychoticsPB27Unintentional exposure to or harmful effects of antiepileptics or antiparkinsonism drugsPB28Unintentional exposure to or harmful effects of other or unspecified drug, medicament or biological substancePB29Unintentional exposure to or harmful effects of multiple drugs, medicaments or biological substances© World Health Organization · CC BY-ND 3.0 IGO