D74.8Other methaemoglobinae mias
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 III
- Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
- Group D70-D77
- Other diseases of blood and blood- forming organs
- Official Vietnamese name
- Bệnh mất sắc tố máu [Methaemoglobinaemia] khác
- Additional WHO coding guidance
- Acquired methaemoglobinaemia (with sulfhaemoglobinaemia) Toxic methaemoglobinaemia Use additional external cause code (Chapter XX) desired to identify cause.
Related D74 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.
