ICD-10-CM · I42.9
ICD-10 I42.9: Cardiomyopathy, unspecified
Cardiomyopathy without specific subtype.
Code
I42.9
Category
Diseases of the circulatory system (I00-I99)
Clinical context
Cardiomyopathy without specific subtype.
Documentation requirements
- Echo with EF
- Family history
- Etiology workup
Common related procedures
- 93306 echo
- Cardiac MRI
- Genetic testing
Common payer denial patterns
- Use I42.0-I42.8 when subtype known
Frequently asked questions
What does ICD-10 I42.9 mean?
Cardiomyopathy, unspecified
When is this code documented?
Cardiomyopathy without specific subtype.
What documentation supports this code?
Echo with EF; Family history; Etiology workup.
What are common denials associated with this diagnosis?
Use I42.0-I42.8 when subtype known.
Related diagnoses
Sources
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