R83Abnormal findings in cerebrospinal fluid
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 R83 directly
Use the most specific code supported by the record.
- Chapter XVIII
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
- Group R83-R89
- Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis
- Official Vietnamese name
- Phát hiện bất thường trong dịch não tủy
- Additional WHO coding guidance
- [See before R83 for subdivisions]
Related R83 codes
R83.0
Primary diagnosis candidate
Abnormal findings in cerebrospinal fluid, abnormal level of enzymes
R83.1
Primary diagnosis candidate
Abnormal findings in cerebrospinal fluid, abnormal level of hormones
R83.2
Primary diagnosis candidate
Abnormal findings in cerebrospinal fluid, abnormal level of other drugs, medicaments and biological substances
R83.3
Primary diagnosis candidate
Abnormal findings in cerebrospinal fluid, abnormal level of substances chiefly nonmedicinal as to source
R83.4
Primary diagnosis candidate
Abnormal findings in cerebrospinal fluid, abnormal immunological findings
R83.5
Primary diagnosis candidate
Abnormal findings in cerebrospinal fluid, abnormal microbiological findings
R83.6
Primary diagnosis candidate
Abnormal findings in cerebrospinal fluid, abnormal cytological findings
R83.7
Primary diagnosis candidate
Abnormal findings in cerebrospinal fluid, abnormal histological findings
R83.8
Primary diagnosis candidate
Abnormal findings in cerebrospinal fluid, other abnormal findings
R83.9
Primary diagnosis candidate
Abnormal findings in cerebrospinal fluid, unspecified abnormal finding
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.
