B16 ICD-10-CM Code: Acute hepatitis B
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
B16Acute hepatitis B
ICD-10-CM diagnosis code · United States clinical modification
Where B16 sits
- 1
Chapter 1
Certain infectious and parasitic diseases (A00-B99)
- 2
Section
Viral hepatitis (B15-B19)
- 3
Category B16
Acute hepatitis B
- 4
Code B16
Acute hepatitis B
Codes under B16
B16 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Notes for this code
Inclusion terms
No inclusion terms are listed for B16.
Code first
No “code first” instruction is listed for B16.
Use additional code
No “use additional code” instruction is listed for B16.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for B16.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for B16.
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 B16 mean?
B16 is the FY 2027 U.S. ICD-10-CM code for “Acute hepatitis B.”
Is B16 a billable or specific ICD-10-CM code?
No. B16 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is B16 located in ICD-10-CM?
B16 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Viral hepatitis (B15-B19) (B15–B19), under category B16, Acute hepatitis B.
What coding notes are listed for B16?
No inclusion terms are listed for B16 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.