"Figure 3: Percentage of drug misuse deaths, by underlying cause and sex, deaths registered in 2016","" "England and Wales","" "","" "Notes","1. Cause of death was defined using the International Classification of Diseases, Tenth Revision (ICD-10). More details can be found in the [Quality and Methodology Information report](https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/qmis/deathsrelatedtodrugpoisoninginenglandandwalesqmi). 2. There are very few deaths from assault by drugs, so for presentation purposes, these have been combined with mental and behavioural disorders due to drug use. 3. Figures are for deaths registered, rather than deaths occurring in each calendar year. 4. Figures for England and Wales include deaths of non-residents. " "Unit","%" "","" "Underlying cause of death","Mental and behavioural disorders and assault by drugs","Suicide","Accidental poisoning" "Females","5","23","72" "Males","7","11","82"