C71.7Brain stem
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 II
- Neoplasms
- Group C00-C97
- Malignant neoplasms U ác tính
- Official Vietnamese name
- U ác tính ở cuống não
- Additional WHO coding guidance
- Fourth ventricle Infratentorial NOS
Related C71 codes
C71
Malignant neoplasm of brain
C71.0
Primary diagnosis candidate
Cerebrum, except lobes and ventricles
C71.1
Primary diagnosis candidate
Frontal lobe
C71.2
Primary diagnosis candidate
Temporal lobe
C71.3
Primary diagnosis candidate
Parietal lobe
C71.4
Primary diagnosis candidate
Occipital lobe
C71.5
Primary diagnosis candidate
Cerebral ventricle
C71.6
Primary diagnosis candidate
Cerebellum
C71.8
Primary diagnosis candidate
Overlapping lesion of brain
C71.9
Primary diagnosis candidate
Brain, 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.
