B33.22 ICD-10-CM Code: Viral myocarditis
B33.22 is the billable ICD-10-CM code for “Viral myocarditis” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
B33.22Viral myocarditis
ICD-10-CM diagnosis code · United States clinical modification
Where B33.22 sits
- 1
Chapter 1
Certain infectious and parasitic diseases (A00-B99)
- 2
Section
Other viral diseases (B25-B34)
- 3
Category B33
Other viral diseases, not elsewhere classified
- 4
Subcategory B33.2
Viral carditis
- 5
Code B33.22
Viral myocarditis
Notes for this code
Inclusion terms
No inclusion terms are listed for B33.22.
Code first
No “code first” instruction is listed for B33.22.
Use additional code
No “use additional code” instruction is listed for B33.22.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for B33.22.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for B33.22.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code B33.22 mean?
B33.22 is the FY 2027 U.S. ICD-10-CM code for “Viral myocarditis.”
Is B33.22 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, B33.22 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is B33.22 located in ICD-10-CM?
B33.22 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Other viral diseases (B25-B34) (B25–B34), under category B33, Other viral diseases, not elsewhere classified and subcategory B33.2, Viral carditis.
What coding notes are listed for B33.22?
No inclusion terms are listed for B33.22 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.