B34.1 Enterovirus infection, unspecified

Billable ICD-10-CM code, FY2026.

Applicable to

• Coxsackievirus infection NOS
• Echovirus infection NOS

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)

• 074.8 Other specified diseases due to Coxsackie virus (approximate)
• 079.89 Other specified viral infection (approximate)

Code annotations containing back-references to B34.1

Back-references to B34

• Code First: H67 Otitis media in diseases classified elsewhere ("viral disease NEC (B00-B34)")

Diagnosis Index entries for B34.1

• Coxsackie (virus) (infection)
• Disease, diseased › coxsackie (virus) NEC
• Disease, diseased › echovirus NEC
• Disease, diseased › enteroviral, enterovirus NEC
• Disease, diseased › nonarthropod-borne NOS (viral) › enterovirus NEC
• Infection, infected, infective (opportunistic) › echovirus › unspecified nature or site
• Infection, infected, infective (opportunistic) › enterovirus
• Infection, infected, infective (opportunistic) › virus, viral NOS › coxsackie
• Infection, infected, infective (opportunistic) › virus, viral NOS › ECHO › unspecified nature or site

Nearby codes

• B34 Viral infection of unspecified site
• B34.0 Adenovirus infection, unspecified
• B34.1 Enterovirus infection, unspecified (this code)
• 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