C34Malignant neoplasm of bronchus and lung
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 C34 directly
Use the most specific code supported by the record.
- Chapter II
- Neoplasms
- Group C00-C97
- Malignant neoplasms U ác tính
- Official Vietnamese name
- U ác tính ở phế quản và/hoặc phổi
Related C34 codes
C34.0
Primary diagnosis candidate
Main bronchus
C34.1
Primary diagnosis candidate
Upper lobe, bronchus or lung
C34.2
Primary diagnosis candidate
Middle lobe, bronchus or lung
C34.3
Primary diagnosis candidate
Lower lobe, bronchus or lung
C34.8
Primary diagnosis candidate
Overlapping lesion of bronchus and lung
C34.9
Primary diagnosis candidate
Bronchus or lung, 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.
