S09.9Unspecified injury of head
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.
- Group S00-S09
- Injuries to the head
- Official Vietnamese name
- Tổn thương không xác định ở đầu
- Additional WHO coding guidance
- Injury of: face NOS ear NOS nose NOS
Related S09 codes
S09
Other and unspecified injuries of head
S09.0
Primary diagnosis candidate
Injury of blood vessels of head, not elsewhere classified
S09.1
Primary diagnosis candidate
Injury of muscle and tendon of head
S09.2
Primary diagnosis candidate
Traumatic rupture of ear drum
S09.7
Primary diagnosis candidate
Multiple injuries of head
S09.8
Primary diagnosis candidate
Other specified injuries of head
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.
