F43Reaction to severe stress, and adjustment disorders
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 F43 directly
Use the most specific code supported by the record.
- Chapter V
- Mental and behavioural disorders
- Group F40-F48
- Neurotic, stress- related and somatoform disorders
- Official Vietnamese name
- Phản ứng với căng thẳng trầm trọng và/hoặc rối loạn điều chỉnh
- Additional WHO coding guidance
- This category differs from others in that it includes disorders identifiable on the basis of not only symptoms and course but also the existence of one or other of two causative influences: an exceptionally stressful life event producing an acute stress reaction, or a significant life change leading to continued unpleasant circumstances that result in an adjustment disorder. Although less severe psychosocial stress ("life events") may precipitate the onset or contribute to the presentation of a very wide range of disorders classified elsewhere in this chapter, its etiological importance is not always clear and in each case will be found to depend on individual, often idiosyncratic,
Related F43 codes
F43.0
Primary diagnosis candidate
Acute stress reaction
F43.1
Primary diagnosis candidate
Post-traumatic stress disorder
F43.2
Primary diagnosis candidate
Adjustment disorders
F43.8
Primary diagnosis candidate
Other reactions to severe stress
F43.9
Primary diagnosis candidate
Reaction to severe stress, 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.