---
title: "ICD-10-CM B34.3: Parvovirus infection, unspecified | BillingBrief"
description: "ICD-10-CM code B34.3: Parvovirus infection, unspecified. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/b34.3/"
language: "en"
---

# B34.3 Parvovirus infection, unspecified

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

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

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Excludes1

Not coded together with this code. The exception is when the two conditions are unrelated to each other.

-   anogenital human papillomavirus infection (A63.0)
-   cytomegaloviral disease NOS (B25.9)
-   herpesvirus \[herpes simplex\] infection NOS (B00.9)
-   retrovirus infection NOS (B33.3)
-   viral agents as the cause of diseases classified elsewhere (B97.-)
-   viral warts due to human papillomavirus infection (B07)

## 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/)
-   [`B34.4` 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/)
-   [`B34.9` Viral infection, unspecified ICD-10-CM](https://billingbrief.com/icd10/b34.9/)

## Common questions

### Is B34.3 a billable code?

Yes. B34.3 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/).