R65Systemic Inflammatory Response Syndrome [SIRS]
Code usage status
Primary diagnosis
Must not be used as the primary diagnosis
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use R65 directly
Use the most specific code supported by the record.
- Chapter XVIII
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
- Group R50-R69
- General symptoms and signs
- Official Vietnamese name
- Hội chứng đáp ứng viêm hệ thống [SIRS]
- Additional WHO coding guidance
- Note: For morbidity, this category should never be used in primary coding. The category is for use in multiple coding to identify this condition resulting from any cause. A code from another chapter should be assigned first to indicate the cause or underlying disease. For mortality, see the instructions in Volume 2.
Related R65 codes
R65.0
Systemic Inflammatory Response Syndrome of infectious origin without organ failure
R65.1
Systemic Inflammatory Response Syndrome of infectious origin with organ failure
R65.2
Systemic Inflammatory Response Syndrome of non- infectious origin without organ failure
R65.3
Systemic Inflammatory Response Syndrome of non- infectious origin with organ failure
R65.9
Systemic Inflammatory Response Syndrome, unspecified
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.
