R78Findings of drugs and other substances, not normally found in blood
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 R78 directly
Use the most specific code supported by the record.
- Chapter XVIII
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
- Official Vietnamese name
- Phát hiện ma túy và/hoặc chất khác, không thường có trong máu
- Additional WHO coding guidance
- Excl.: mental and behavioural disorders due to psychoactive substance use (F10-F19)
Related R78 codes
R78.0
Primary diagnosis candidate
Finding of alcohol in blood
R78.1
Primary diagnosis candidate
Finding of opiate drug in blood
R78.2
Primary diagnosis candidate
Finding of cocaine in blood
R78.3
Primary diagnosis candidate
Finding of hallucinogen in blood
R78.4
Primary diagnosis candidate
Finding of other drugs of addictive potential in blood
R78.5
Primary diagnosis candidate
Finding of psychotropic drug in blood
R78.6
Primary diagnosis candidate
Finding of steroid agent in blood
R78.7
Primary diagnosis candidate
Finding of abnormal level of heavy metals in blood
R78.8
Primary diagnosis candidate
Finding of other specified substances, not normally found in blood
R78.9
Primary diagnosis candidate
Finding of unspecified substance, not normally found in blood
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.
