Addiction: Definitions and key concepts
The DSM-5 (APA, 2013) describes ten kinds of substances that can be the focus of substance use disorders, including alcohol, cannabis, opioids, stimulants and tobacco. The DSM-5 (APA, 2013) outlines 11 criteria for substance use disorder, which are divided into four categories of substance use-related behaviours (Portico, 2017):
- loss of control
- social impairment
- risky use
- substance-related signs (tolerance and withdrawal)
Substance use disorder is measured on a spectrum from mild to severe. The severity of the disorder is determined by the number of diagnostic criteria that a person meets (Portico, 2017).