F45.1Undifferentiated somatoform disorder
Code usage status
Primary diagnosis
May be used as the primary diagnosis
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Complete code in the classification
Use when the diagnosis matches and no exclusion applies.
- Chapter V
- Mental and behavioural disorders
- Group F40-F48
- Neurotic, stress- related and somatoform disorders
- Official Vietnamese name
- Rối loạn dạng cơ thể không phân biệt
- Additional WHO coding guidance
- When somatoform complaints are multiple, varying and persistent, but the complete and typical clinical picture of somatization disorder is not fulfilled, the diagnosis of undifferentiated somatoform disorder should be considered.
Related F45 codes
F45
Somatoform disorders
F45.0
Primary diagnosis candidate
Somatization disorder
F45.2
Primary diagnosis candidate
Hypochondriacal disorder
F45.3
Primary diagnosis candidate
Somatoform autonomic dysfunction
F45.4
Primary diagnosis candidate
Persistent somatoform pain disorder
F45.8
Primary diagnosis candidate
Other somatoform disorders
F45.9
Primary diagnosis candidate
Somatoform disorder, 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.
