ICD-10-CM 2027 diagnosis code

B10.8Other human herpesvirus infection

Not billable — use a more specific code

B10.8 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About B10.8

B10.8 is the ICD-10-CM diagnosis code for other human herpesvirus infection. It belongs to category B10 (other human herpesviruses), block B10 (other human herpesviruses) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within B10 (other human herpesviruses), B10.8 is specifically for other human herpesvirus infection. Related codes cover encephalitis (B10.0).

To report this condition, pick the subcode that matches the documentation: B10.81 (infection), B10.82 (infection) and B10.89 (infection).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under B10.8

Notes that apply from higher levels

Instructions written at a parent level also apply to B10.8.

› From B10 Other human herpesviruses

Excludes2

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.-)

Broader instructions also apply from Chapter 1: Certain infectious and parasitic diseases.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about B10.8

Is B10.8 billable?: No. B10.8 is a header code. Report one of its more specific subcodes instead.