C84.5Other mature T/NK- cell lymphomas
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 lympho tế bào T/NK trưởng thành khác
- Additional WHO coding guidance
- Note: If T-cell lineage or involvement is mentioned in conjunction with a specific lymphoma, code to the more specific description. Excl.: angioimmunoblastic T- cell lymphoma (C86.5) blastic NK-cell lymphoma (C86.4) enteropathy-type T- cell lymphoma (C86.2) extranodal NK-cell lymphoma, nasal type (C86.0) hepatosplenic T-cell lymphoma (C86.1) primary cutaneous CD30-positive T-cell proliferations (C86.6) subcutaneous panniculitis-like T-cell lymphoma (C86.3) T-cell leukaemia (C91.-)
Related C84 codes
C84
Mature T/NK-cell lymphomas
C84.0
Primary diagnosis candidate
Mycosis fungoides
C84.1
Primary diagnosis candidate
Sézary disease
C84.4
Primary diagnosis candidate
Peripheral T-cell lymphoma, not elsewhere classified
C84.6
Primary diagnosis candidate
Anaplastic large cell lymphoma, ALK- positive
C84.7
Primary diagnosis candidate
Anaplastic large cell lymphoma, ALK- negative
C84.8
Primary diagnosis candidate
Cutaneous T-cell lymphoma, unspecified
C84.9
Primary diagnosis candidate
Mature T/NK-cell lymphoma, 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.
