ICD-11 classes
06 Mental, behavioural or neurodevelopmental disorders
Disorders due to substance use or addictive behaviours
Disorders due to substance use
6C49 — Disorders due to use of hallucinogens

ICD-11 6C49 — Disorders due to use of hallucinogens

Disorders due to use of hallucinogens are characterised by the pattern and consequences of hallucinogen use. Several thousand compounds have hallucinogenic properties, many of which are found in plants (e.g., mescaline) and fungi (e.g., psilocybin) or are chemically synthesized (e.g., lysergic acid diethylamide [LSD]). These compounds have primarily hallucinogenic properties, but some may also be stimulants. Much of the morbidity associated with these compounds arises from the acute effects related to Hallucinogen Intoxication. Hallucinogen Dependence is rare and Hallucinogen Withdrawal is not described. Among the mental disorders related to hallucinogen use, Hallucinogen-Induced Psychotic Disorder is the most frequently seen, although worldwide it is still fairly uncommon.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis with code 6C49 contains 9 clarifying diagnoses:

1. 6C49.0 — Episode of harmful use of hallucinogens
2. 6C49.1 — Harmful pattern of use of hallucinogens
   It contains 3 clarifying diagnoses.
3. 6C49.2 — Hallucinogen dependence
   It contains 5 clarifying diagnoses.
4. 6C49.3 — Hallucinogen intoxication
5. 6C49.4 — Hallucinogen-induced delirium
6. 6C49.5 — Hallucinogen-induced psychotic disorder
7. 6C49.6 — Certain specified hallucinogen-induced mental or behavioural disorders
   It contains 2 clarifying diagnoses.
8. 6C49.Y — Other specified disorders due to use of hallucinogens
9. 6C49.Z — Disorders due to use of hallucinogens, unspecified