B34.9 Viral infection, unspecified
Billable ICD-10-CM code, FY2026.
Applicable to
Applies from B34 Viral infection of unspecified site
Excludes1 (never code together)
- 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)
MS-DRG index
Defines the logic of DRG(s) 865-866 in MDC 18.
Approximate ICD-9-CM (GEMs)
790.8 Viremia, unspecified (approximate)
Code annotations containing back-references to B34.9
Back-references to B34
- Code First:
H67 Otitis media in diseases classified elsewhere ("viral disease NEC (B00-B34)")
Diagnosis Index entries for B34.9
- Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › in (due to) › viral disease NEC
- Disease, diseased › nonarthropod-borne NOS (viral)
- Disease, diseased › viral, virus
- Disease, diseased › viral, virus › nonarthropod-borne NOS
- Infection, infected, infective (opportunistic) › virus, viral NOS
- Infection, infected, infective (opportunistic) › virus, viral NOS › unspecified nature or site
- Otitis (acute) › externa › in (due to) › viral disease NEC
- Syndrome › virus
- Viremia
Nearby codes
B34.1 Enterovirus infection, unspecifiedB34.2 Coronavirus infection, unspecifiedB34.3 Parvovirus infection, unspecifiedB34.4 Papovavirus infection, unspecifiedB34.8 Other viral infections of unspecified siteB34.9 Viral infection, unspecified (this code)