Substance-related disorder

A substance-related disorder is an umbrella term used to describe several different conditions (such as intoxication, harmful use/abuse, dependence, withdrawal, and psychoses or amnesia associated with the use of the substance) associated with several different substances (such as alcohol or opiods.)

Substance-related disorders can be subcategorized into "substance use disorders" (SUD) and "substance-induced disorders" (SID).

Though DSM-IV makes a firm distinction between the two, SIDs often occur in the context of SUDs.

Substance-induced disorders
Substance-induced disorders include medical conditions that can be directly attributed to the use of a substance.

These conditions include intoxication, withdrawal, substance-induced delirium, substance-induced psychosis, and substance-induced mood disorders.

Substance use disorders
Substance use disorders include substance abuse and substance dependence. In DSM-IV, the conditions are formally diagnosed as one or the other, but it has been proposed that DSM-V combine the two into a single condition called "Substance-use disorder".