I42Cardiomyopathy
Code usage status
Primary diagnosis
Select a more specific code
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use I42 directly
Use the most specific code supported by the record.
- Chapter IX
- Diseases of the circulatory system
- Group I30-I52
- Other forms of heart disease
- Official Vietnamese name
- Bệnh lý cơ tim
- Additional WHO coding guidance
- Excl.: cardiomyopathy complicating: pregnancy (O99.4) puerperium (O90.3) ischaemic
Related I42 codes
I42.0
Primary diagnosis candidate
Dilated cardiomyopathy
I42.1
Primary diagnosis candidate
Obstructive hypertrophic cardiomyopathy
I42.2
Primary diagnosis candidate
Other hypertrophic cardiomyopathy
I42.3
Primary diagnosis candidate
Endomyocardial (eosinophilic) disease
I42.4
Primary diagnosis candidate
Endocardial fibroelastosis
I42.5
Primary diagnosis candidate
Other restrictive cardiomyopathy
I42.6
Primary diagnosis candidate
Alcoholic cardiomyopathy
I42.7
Primary diagnosis candidate
Cardiomyopathy due to drugs and other external agents
I42.8
Primary diagnosis candidate
Other cardiomyopathies
I42.9
Primary diagnosis candidate
Cardiomyopathy, 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.
