F19Mental and behavioural disorders due to multiple drug use and use of other psychoactive substances
Code usage status
Primary diagnosis
Select a more specific code
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use F19 directly
Use the most specific code supported by the record.
- Chapter V
- Mental and behavioural disorders
- Official Vietnamese name
- Rối loạn tâm thần và/hoặc hành vi do sử dụng nhiều chất ma túy và/hoặc chất hướng thần khác
- Additional WHO coding guidance
- [See before F10 for subdivisions] This category should be used when two or more psychoactive substances are known to be involved, but it is impossible to assess which substance is contributing most to the disorders. It should also be used when the exact identity of some or even all the psychoactive substances being used is uncertain or unknown, since many multiple drug users themselves often do not know the details of what they are taking. Incl.: misuse of drugs NOS
Related F19 codes
F19.0
Primary diagnosis candidate
Mental and behavioural disorders due to multiple drug use and use of other psychoactive substances, acute intoxication
F19.1
Primary diagnosis candidate
Mental and behavioural disorders due to multiple drug use and use of other psychoactive substances, harmful use
F19.2
Primary diagnosis candidate
Mental and behavioural disorders due to multiple drug use and use of other psychoactive substances, dependence syndrome
F19.3
Primary diagnosis candidate
Mental and behavioural disorders due to multiple drug use and use of other psychoactive substances, withdrawal state
F19.4
Primary diagnosis candidate
Mental and behavioural disorders due to multiple drug use and use of other psychoactive substances, withdrawal state with delirium
F19.5
Primary diagnosis candidate
Mental and behavioural disorders due to multiple drug use and use of other psychoactive substances, psychotic disorder
F19.6
Primary diagnosis candidate
Mental and behavioural disorders due to multiple drug use and use of other psychoactive substances, amnesic syndrome
F19.7
Primary diagnosis candidate
Mental and behavioural disorders due to multiple drug use and use of other psychoactive substances, residual and late- onset psychotic disorder
F19.8
Primary diagnosis candidate
Mental and behavioural disorders due to multiple drug use and use of other psychoactive substances, other mental and behavioural disorders
F19.9
Primary diagnosis candidate
Mental and behavioural disorders due to multiple drug use and use of other psychoactive substances, unspecified mental and behavioural disorder
Clinical record checklist
View coding guide →- Confirm that the code matches the final documented diagnosis.
- Use one primary-diagnosis code and record only relevant additional conditions.
- Review Ministry indicators, inclusions, exclusions and notes.
- Do not infer a diagnosis beyond the clinical record.
2026 regulatory basis
Indicators are taken from columns 24–29 of the classification accompanying Circular 06/2026/TT-BYT, cross-referenced with Decision 1849/QĐ-BYT and Official Dispatch 4059/BYT-BH.
