ICD-10-CM Diagnosis Code (2025)
Official Description for B34
Viral infection of unspecified site
Coding Notes & Guidelines for B34
Excludes1: Not Coded Here
- 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)
Excludes1: Not Coded Here
- COVID-19 (U07.1)
- pneumonia due to SARS-associated coronavirus (J12.81)
Inclusion Terms
- Coxsackievirus infection NOS
- Echovirus infection NOS
Inclusion Terms
Viremia NOS
Child Codes (More Specific Codes for B34):
B34.0 - Adenovirus infection, unspecified
B34.1 - Enterovirus infection, unspecified
B34.2 - Coronavirus infection, unspecified
B34.3 - Parvovirus infection, unspecified
B34.4 - Papovavirus infection, unspecified
B34.8 - Other viral infections of unspecified site
B34.9 - Viral infection, unspecified
About ICD-10-CM Code B34 (Viral infection of unspecified site)
ICD-10-CM code B34 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM B34 became effective on October 1, 2024.
This page provides detailed information about B34 - Viral infection of unspecified site. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Viral infection of unspecified site.