B33.24 — Viral cardiomyopathy
B33.24 is a billable, specific ICD-10-CM code for viral cardiomyopathy. It is valid for submission on a claim.
Other codes that can never be billed with B33.24
These codes carry an Excludes1 note pointing at B33.24. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading B33.24 alone.
- I43Cardiomyopathy in diseases classified elsewhere
Risk adjustment
B33.24 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 227 Cardiomyopathy/Myocarditis0.189 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
B33.24 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57326Billing and Coding: Electrocardiograms
- A58710Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
- A58720Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
- A58747Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
How B33.24 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to B33.24.
- Cardiomyopathy›viral
Related codes at this level
Codes that share B33.2. If B33.24 is not quite right, the correct code is usually one of these.
Questions about B33.24
- Is B33.24 a billable ICD-10-CM code?
- Yes. B33.24 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does B33.24 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Other viral diseases (B25-B34).