B33.22
✓ Billable
Viral myocarditis
ICD-10-CM · FY2026 · Certain Infectious and Parasitic Diseases
Code
B33.22
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Certain Infectious and Parasitic Diseases
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code B33.22?
ICD-10-CM code B33.22 represents Viral myocarditis. It is a billable diagnosis code in the Certain Infectious and Parasitic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is B33.22 billable?
Yes. B33.22 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is B33.22 in?
B33.22 belongs to the Certain Infectious and Parasitic Diseases chapter (A00–B99) of ICD-10-CM.
Related codes in the B33 category
B33
Other viral diseases, not elsewhere classified
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B33.0
Epidemic myalgia
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B33.1
Ross River disease
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B33.2
Viral carditis
Non-billable
B33.3
Retrovirus infections, not elsewhere classified
Billable
B33.4
Hantavirus (cardio)-pulmonary syndrome [HPS] [HCPS]
Billable
B33.8
Other specified viral diseases
Billable
B33.20
Viral carditis, unspecified
Billable
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