ICD-11 classes
06 Mental, behavioural or neurodevelopmental disorders
Disorders due to substance use or addictive behaviours
Disorders due to substance use

ICD-11 Disorders due to substance use

Disorders due to substance use include disorders that result from a single occasion or repeated use of substances that have psychoactive properties, including certain medications. Disorders related to fourteen classes or groups of psychoactive substances are included. Typically, initial use of these substances produces pleasant or appealing psychoactive effects that are rewarding and reinforcing with repeated use. With continued use, many of the included substances have the capacity to produce dependence. They also have the potential to cause numerous forms of harm, both to mental and physical health. Disorders due to harmful non-medical use of non-psychoactive substances are also included in this grouping.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis contains 21 clarifying diagnosis:

1. 6C40 — Disorders due to use of alcohol
   It contains 10 clarifying diagnoses.
2. 6C41 — Disorders due to use of cannabis
   It contains 10 clarifying diagnoses.
3. 6C42 — Disorders due to use of synthetic cannabinoids
   It contains 10 clarifying diagnoses.
4. 6C43 — Disorders due to use of opioids
   It contains 10 clarifying diagnoses.
5. 6C44 — Disorders due to use of sedatives, hypnotics or anxiolytics
   It contains 10 clarifying diagnoses.
6. 6C45 — Disorders due to use of cocaine
   It contains 10 clarifying diagnoses.
7. 6C46 — Disorders due to use of stimulants including amphetamines, methamphetamine or methcathinone
   It contains 10 clarifying diagnoses.
8. 6C47 — Disorders due to use of synthetic cathinones
   It contains 10 clarifying diagnoses.
9. 6C48 — Disorders due to use of caffeine
   It contains 7 clarifying diagnoses.
10. 6C49 — Disorders due to use of hallucinogens
    It contains 9 clarifying diagnoses.
11. 6C4A — Disorders due to use of nicotine
    It contains 7 clarifying diagnoses.
12. 6C4B — Disorders due to use of volatile inhalants
    It contains 10 clarifying diagnoses.
13. 6C4C — Disorders due to use of MDMA or related drugs, including MDA
    It contains 10 clarifying diagnoses.
14. 6C4D — Disorders due to use of dissociative drugs including ketamine and phencyclidine [PCP]
    It contains 9 clarifying diagnoses.
15. 6C4E — Disorders due to use of other specified psychoactive substances, including medications
    It contains 10 clarifying diagnoses.
16. 6C4F — Disorders due to use of multiple specified psychoactive substances, including medications
    It contains 10 clarifying diagnoses.
17. 6C4G — Disorders due to use of unknown or unspecified psychoactive substances
    It contains 10 clarifying diagnoses.
18. 6C4H — Disorders due to use of non-psychoactive substances
    It contains 4 clarifying diagnoses.
19. 6A41 — Catatonia induced by substances or medications
20. 6C4Y — Other specified disorders due to substance use
21. 6C4Z — Disorders due to substance use, unspecified