B17.9 ICD-10-CM Code: Acute viral hepatitis, unspecified
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
B17.9Acute viral hepatitis, unspecified
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where B17.9 sits
- 1
Chapter 1
Certain infectious and parasitic diseases (A00-B99)
- 2
Section
Viral hepatitis (B15-B19)
- 3
Category B17
Other acute viral hepatitis
- 4
Code B17.9
Acute viral hepatitis, unspecified
Documentation details
Notes for this code
Inclusion terms
- Acute hepatitis NOS
- Acute infectious hepatitis NOS
Code first
No “code first” instruction is listed for B17.9.
Use additional code
No “use additional code” instruction is listed for B17.9.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for B17.9.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for B17.9.
Transparency
Source and release
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.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code B17.9 mean?
B17.9 is the FY 2027 U.S. ICD-10-CM code for “Acute viral hepatitis, unspecified.”
Is B17.9 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, B17.9 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 B17.9 located in ICD-10-CM?
B17.9 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Viral hepatitis (B15-B19) (B15–B19), under category B17, Other acute viral hepatitis.
What coding notes are listed for B17.9?
Its listed inclusion terms are Acute hepatitis NOS; Acute infectious hepatitis NOS. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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