B33.2 (Viral carditis) is an umbrella ICD-10-CM medical diagnosis code in the Certain infectious and parasitic diseases chapter. It identifies cases of viral carditis for clinical documentation, billing and epidemiological tracking.

ICD-10-CM · Category

B33.2 — Viral carditis

Chapter A00-B99: Certain infectious and parasitic diseases

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Sub-codes under B33.2

B33.20Viral carditis, unspecifiedB33.21Viral endocarditisB33.22Viral myocarditisB33.23Viral pericarditisB33.24Viral cardiomyopathy

Related diagnoses

B33.0Epidemic myalgiaB33.1Ross River diseaseB33.3Retrovirus infections, not elsewhere classifiedB33.4Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]B33.8Other specified viral diseases

Common questions about B33.2 (Viral carditis)

What does ICD-10 code B33.2 mean?
B33.2 is the ICD-10-CM 2025 code for Viral carditis. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is B33.2 a billable diagnosis code?
B33.2 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under B33.2. Browse the sub-codes listed on this page.
Which ICD-10 chapter does B33.2 belong to?
B33.2 belongs to the chapter "Certain infectious and parasitic diseases" (codes A00-B99). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Viral carditis?
For a plain-language explanation of Viral carditis, ask GoDavaii's Health AI - it explains medical conditions in 22+ Indian languages, free, with no signup. Tap "Ask GoDavaii AI about Viral carditis" above to get a personalised answer.

Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗