552 Substance-Related and Addictive Disorders
Specify current severity:
305.40 (F13.10) Mild:  Presence of 2–3 symptoms.
304.10 (F13.20) Moderate: Presence of 4–5 symptoms.
304.10 (F13.20) Severe:  Presence of 6 or more symptoms.
Specifiers
“In a controlled environment” app lies as a further specifier of remission if the individual is
both in remission and in a controlled environm ent (i.e., in early remission in a controlled
environment or in sustained remission in a controlled environmen t). Examples of these
environments are closely supe rvised and substanc e-free jails, therapeutic communities,
and locked hospital units. 
Diagnostic Features
Sedative, hypnotic, or anxiolytic substances  include benzodiazepines, benzodiazepine-
like drugs (e.g., zolpidem, zaleplon), carb amates (e.g., glutethimide, meprobamate),
barbiturates (e.g., secobarbital), and barbitur ate-like hypnotics (e.g ., glutethimide, meth-
aqualone). This class of substances includes  all prescription slee ping medications and
almost all prescription antianxiety medica tions. Nonbenzodiazep ine antianxiety agents
(e.g., buspirone, gepirone) are not included in this class because they do not appear to be
associated with significant misuse.
Like alcohol, these agents are brain depressants and can produce similar substance/
medication-induced and substa nce use disorders. Sedative, hypnotic, or anxiolytic sub-
stances are available both by prescription an d illegally. Some individuals who obtain these