R84Abnormal findings in specimens from respiratory organs and thorax
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 R84 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 mẫu bệnh phẩm từ cơ quan hô hấp và/hoặc lồng ngực
- Additional WHO coding guidance
- [See before R83 for subdivisions] Incl.: Abnormal findings in: bronchial washings nasal secretions pleural fluid sputum throat scrapings Excl.: blood-stained sputum (R04.2)
Related R84 codes
R84.0
Primary diagnosis candidate
Abnormal findings in specimens from respiratory organs and thorax, abnormal level of enzymes
R84.1
Primary diagnosis candidate
Abnormal findings in specimens from respiratory organs and thorax, abnormal level of hormones
R84.2
Primary diagnosis candidate
Abnormal findings in specimens from respiratory organs and thorax, abnormal level of other drugs, medicaments and biological substances
R84.3
Primary diagnosis candidate
Abnormal findings in specimens from respiratory organs and thorax, abnormal level of substances chiefly nonmedicinal as to source
R84.4
Primary diagnosis candidate
Abnormal findings in specimens from respiratory organs and thorax, abnormal immunological findings
R84.5
Primary diagnosis candidate
Abnormal findings in specimens from respiratory organs and thorax, abnormal microbiological findings
R84.6
Primary diagnosis candidate
Abnormal findings in specimens from respiratory organs and thorax, abnormal cytological findings
R84.7
Primary diagnosis candidate
Abnormal findings in specimens from respiratory organs and thorax, abnormal histological findings
R84.8
Primary diagnosis candidate
Abnormal findings in specimens from respiratory organs and thorax, other abnormal findings
R84.9
Primary diagnosis candidate
Abnormal findings in specimens from respiratory organs and thorax, 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.
