---
title: "ICD-10-CM B34.9: Viral infection, unspecified | BillingBrief"
description: "ICD-10-CM code B34.9: Viral infection, unspecified. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/b34.9/"
language: "en"
---

# B34.9 Viral infection, unspecified

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Viral infection, unspecified

## Related codes

-   [`B34.0` Adenovirus infection, unspecified ICD-10-CM](https://billingbrief.com/icd10/b34.0/)
-   [`B34.1` Enterovirus infection, unspecified ICD-10-CM](https://billingbrief.com/icd10/b34.1/)
-   [`B34.2` Coronavirus infection, unspecified ICD-10-CM](https://billingbrief.com/icd10/b34.2/)
-   [`B34.3` Parvovirus infection, unspecified ICD-10-CM](https://billingbrief.com/icd10/b34.3/)
-   [`B34.4` Papovavirus infection, unspecified ICD-10-CM](https://billingbrief.com/icd10/b34.4/)
-   [`B34.8` Other viral infections of unspecified site ICD-10-CM](https://billingbrief.com/icd10/b34.8/)

## Common questions

### Is B34.9 a billable code?

Yes. B34.9 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

B34 Viral infection of unspecified site

Chapter

Certain infectious and parasitic diseases

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).