C78.0Secondary malignant neoplasm of lung
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 thứ phát ở phổi
Related C78 codes
C78
Secondary malignant neoplasm of respiratory and digestive organs
C78.1
Primary diagnosis candidate
Secondary malignant neoplasm of mediastinum
C78.2
Primary diagnosis candidate
Secondary malignant neoplasm of pleura
C78.3
Primary diagnosis candidate
Secondary malignant neoplasm of other and unspecified respiratory organs
C78.4
Primary diagnosis candidate
Secondary malignant neoplasm of small intestine
C78.5
Primary diagnosis candidate
Secondary malignant neoplasm of large intestine and rectum
C78.6
Primary diagnosis candidate
Secondary malignant neoplasm of retroperitoneum and peritoneum
C78.7
Primary diagnosis candidate
Secondary malignant neoplasm of liver and intrahepatic bile duct
C78.8
Primary diagnosis candidate
Secondary malignant neoplasm of other and unspecified digestive organs
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.
