All ICD10 Codes

B34

Non-Billable
ChapterA00–B99
Rankcategory
Official Description

Viral infection of unspecified site

Use a more specific code (7 billable)
B34.0Adenovirus infection, unspecifiedB34.1Enterovirus infection, unspecifiedB34.2Coronavirus infection, unspecifiedB34.3Parvovirus infection, unspecifiedB34.4Papovavirus infection, unspecifiedB34.8Other viral infections of unspecified siteB34.9Viral infection, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • carrier or suspected carrier of infectious disease (Z22.-)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
Use Additional Code
  • code to identify resistance to antimicrobial drugs (Z16.-)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • 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)

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
B25-B34Other viral diseases (B25-B34)
B34Viral infection of unspecified siteNot billable
B34.0Adenovirus infection, unspecifiedBillable
B34.1Enterovirus infection, unspecifiedBillable
B34.2Coronavirus infection, unspecifiedBillable
B34.3Parvovirus infection, unspecifiedBillable
B34.4Papovavirus infection, unspecifiedBillable
B34.8Other viral infections of unspecified siteBillable
B34.9Viral infection, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to B34:

chapterCH1
Certain infectious and parasitic diseases (A00-B99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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