B33.2 – Viral carditis
ICD-10-CM 2027 diagnosis code · Other viral diseases
ICD-10-CM code
B33.2
- Code
B33.2(claims format:B332)- Description
- Viral carditis
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- B25-B34 Other viral diseases
- Parent codes
- B33
Billable codes under B33.2
B33.2 is a header code and cannot be used on claims. Choose the most specific code:
- B33.20 – Viral carditis, unspecifiedBillable
- B33.21 – Viral endocarditisBillable
- B33.22 – Viral myocarditisBillable
- B33.23 – Viral pericarditisBillable
- B33.24 – Viral cardiomyopathyBillable
Notes for B33.2
Applicable to:
- Coxsackie (virus) carditis
Related codes in B33
Frequently asked questions
What is ICD-10 code B33.2?
B33.2 is the ICD-10-CM code for viral carditis, in the block B25-B34 (Other viral diseases).
Is B33.2 a billable code?
No. B33.2 is a header code with more specific child codes; report one of the billable codes listed above.
What category does B33.2 belong to?
It belongs to category B33 – Other viral diseases, not elsewhere classified.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.