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B34.1

B34.1: Enterovirus infection, unspecified

Billable / specific codeICD-10-CM

B34.1 is a billable, specific ICD-10-CM code for enterovirus infection, unspecified. It is valid for submission on a claim.

Check B34.1 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Coxsackievirus infection NOS
  • Echovirus infection NOS

Excludes1 inherited from the categories above B34.1

A category’s note binds every code beneath it.

Written on B34: Viral infection of unspecified site

  • 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)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

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

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under B34

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.