C81.9Hodgkin lymphoma, unspecified
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 Hodgkin, thể không xác định
Related C81 codes
C81
Hodgkin lymphoma
C81.0
Primary diagnosis candidate
Nodular lymphocyte predominant Hodgkin lymphoma
C81.1
Primary diagnosis candidate
Nodular sclerosis (classical) Hodgkin lymphoma
C81.2
Primary diagnosis candidate
Mixed cellularity (classical) Hodgkin lymphoma
C81.3
Primary diagnosis candidate
Lymphocyte depleted (classical) Hodgkin lymphoma
C81.4
Primary diagnosis candidate
Lymphocyte-rich (classical) Hodgkin lymphoma
C81.7
Primary diagnosis candidate
Other (classical) Hodgkin lymphoma
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.
