ICD-10 B33.2
Non-Billable HeaderViral carditis
About ICD-10-CM B33.2
ICD-10-CM code B33.2 represents Viral carditis. This is a non-billable header code in the Infectious and Parasitic Diseases chapter (block B33). The 2026 edition of ICD-10-CM B33.2 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under B33.2. Per CMS ICD-10-CM Tabular 2026.
- Coxsackie (virus) carditis
Medicare LCD Coverage for B33.2
Local Coverage Determinations (LCDs) from CMS MACs that list B33.2 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing B33.2.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but B33.2 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with B33.2
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To B33.2
Other codes in section B25-B34 (Other viral diseases).
ICD-10 B33.2, Billing FAQ
Is ICD-10 code B33.2 billable? +
No, B33.2 is a non-billable header code. Use a more specific child code from block B33 when submitting claims.
What other names or terms map to B33.2? +
ICD-10 B33.2 includes: Coxsackie (virus) carditis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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