Other human herpesviruses (B10) ICD-10-CM
The B10 code range covers other human herpesviruses with 8 ICD-10-CM diagnosis codes. 5 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the B10 Range 8 codes · 5 billable
- B10 Other human herpesvirusesNon-billable
- B10.0 Other human herpesvirus encephalitisNon-billable
- B10.01 Human herpesvirus 6 encephalitis
- B10.09 Other human herpesvirus encephalitis
- B10.8 Other human herpesvirus infectionNon-billable
- B10.81 Human herpesvirus 6 infection
- B10.82 Human herpesvirus 7 infection
- B10.89 Other human herpesvirus infection
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the B10 range.
Castleman Disease
Large benign, hyperplastic lymph nodes. The more common hyaline vascular subtype is characterized by small hyaline vascular follicles and interfollicular capillary proliferations. Plasma cells are often present and represent another subtype with the plasma cells containing IgM and IMMUNOGLOBULIN A.
About the B10 Code Range
B10 codes cover infections caused by less common human herpesviruses, including specific types like human herpesvirus 6 and 7. These codes are used for diagnosing viral infections such as encephalitis and other tissue involvement related to these viruses.
The B10 category includes conditions like other human herpesvirus encephalitis (B10.0), with more specific codes for human herpesvirus 6 encephalitis (B10.01) and other herpesvirus encephalitis including human herpesvirus 7 and 8 (B10.09). These viruses, also known as Roseolovirus, can cause viral brain inflammation and other serious complications. Additionally, codes B10.8x identify various infections from human herpesvirus 6 and 7 affecting the skin or other organs, and B10.89 captures infections linked to human herpesvirus 8, which is associated with conditions like Castleman disease and Kaposi's sarcoma. These codes help healthcare professionals specify and track these less common herpesvirus infections for accurate diagnosis and treatment planning.
Questions About This Page
How many billable codes are in the B10 range?
Of the 8 codes in this range, 5 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the B10 range classify?
The range classifies other human herpesviruses. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
