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Table 1 ICD–10 chapters and individual mortality causes within aggregated chapters used in this analysis

From: Confluence of suicide and drug overdose epidemics in young Australian males: common causality?

Chapter and scope: Individual or aggregated categories and ICD–10 codes

Chapter XX: External Causes - Injury and poisoning

Motor-vehicle accidents (MVA), suicide and non-intentional drug

overdose

Excluding: homicide, war, legal intervention, medical or surgical

complications, unknown intent, and all other accidents

MVA

MVA: V01–Y89, Y850 (sequelae transport accident)

Drug-related deaths (not coded as intentional)

Accidental Drug Poisoning/Overdose: X40–X44

Accidental drug poisoning by heroin: ICD–10 code X42

All other accidental deaths (not included)

Water and air transport accidents

Falls, mechanical, drowning, fire, electricity/radiation, heat/cold, etc.

(except X40–X44)

Death from intentional self-harm

Suicide: X60–X84, Y870 (sequelae intentional self-harm)

Hanging/Strangulation/Suffocation: X70

Self-inflicted poisoning from Gases, including Motor Vehicle Exhaust

Gases (MVEG): X67

Firearm use (self-inflicted): X72–X74

Self-inflicted Poisoning from Solids/Liquids: X60–X66, X68–X69

Self-inflicted Poisoning from drugs: X60–X64

Chapter V: Mental and Behavioural disorders

ICD–10 codes (drug overdose, use of one or more psychoactive

substances)

F11: opioids, F12: cannabinoids, F14: cocaine; F16: hallucinogens;

F19: other and multiple psychoactive substances

Grouped with drug-related accidental deaths

Excluding: sedatives/hypnotics, alcohol, tobacco, caffeine, volatile

solvents