C30.0Nasal cavity
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 khoang mũi
- Additional WHO coding guidance
- Cartilage of nose Concha, nasal Internal nose Septum of nose Vestibule of nose Excl.: nasal bone (C41.0) nose NOS (C76.0) olfactory bulb (C72.2) posterior margin of nasal septum and choana (C11.3) skin of nose (C43.3, C44.3)
Related C30 codes
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.
