B10.01 – Human herpesvirus 6 encephalitis

ICD-10-CM 2027 diagnosis code · Other human herpesviruses (B10)

Billable code

ICD-10-CM code B10.01
Code
B10.01 (claims format: B1001)
Description
Human herpesvirus 6 encephalitis
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
1. Certain infectious and parasitic diseases (A00-B99)
Block
B10 Other human herpesviruses (B10)
Parent codes
B10 › B10.0

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

B10 – Other human herpesviruses

Excludes2 (not included here):
  • cytomegalovirus (B25.9)
  • Epstein-Barr virus (B27.0-)
  • herpes NOS (B00.9)
  • herpes simplex (B00.-)
  • herpes zoster (B02.-)
  • human herpesvirus NOS (B00.-)
  • human herpesvirus 1 and 2 (B00.-)
  • human herpesvirus 3 (B01.-, B02.-)
  • human herpesvirus 4 (B27.0-)
  • human herpesvirus 5 (B25.-)
  • varicella (B01.-)
  • zoster (B02.-)

B10.0 – Other human herpesvirus encephalitis

Excludes2 (not included here):
  • herpes encephalitis NOS (B00.4)
  • herpes simplex encephalitis (B00.4)
  • human herpesvirus encephalitis (B00.4)
  • simian B herpes virus encephalitis (B00.4)

Index terms for B10.01

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in B10.0

Frequently asked questions

What is ICD-10 code B10.01?

B10.01 is the ICD-10-CM code for human herpesvirus 6 encephalitis, in the block B10 (Other human herpesviruses (B10)).

Is B10.01 a billable code?

Yes. B10.01 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does B10.01 belong to?

It belongs to category B10 – Other human herpesviruses.

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.