B00 – Herpesviral [herpes simplex] infections
ICD-10-CM 2027 diagnosis code · Viral infections characterized by skin and mucous membrane lesions
ICD-10-CM code
B00
- Code
B00(claims format:B00)- Description
- Herpesviral [herpes simplex] infections
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- B00-B09 Viral infections characterized by skin and mucous membrane lesions
Billable codes under B00
B00 is a header code and cannot be used on claims. Choose the most specific code:
- B00.0 – Eczema herpeticumBillable
- B00.1 – Herpesviral vesicular dermatitisBillable
- B00.2 – Herpesviral gingivostomatitis and pharyngotonsillitisBillable
- B00.3 – Herpesviral meningitisBillable
- B00.4 – Herpesviral encephalitisBillable
- B00.5 – Herpesviral ocular diseaseHeader (more codes below)
- B00.7 – Disseminated herpesviral diseaseBillable
- B00.8 – Other forms of herpesviral infectionsHeader (more codes below)
- B00.9 – Herpesviral infection, unspecifiedBillable
Notes for B00
Excludes1 (not coded here):
- congenital herpesviral infections (P35.2)
Frequently asked questions
What is ICD-10 code B00?
B00 is the ICD-10-CM code for herpesviral [herpes simplex] infections, in the block B00-B09 (Viral infections characterized by skin and mucous membrane lesions).
Is B00 a billable code?
No. B00 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.