B97.1 ICD-10-CA code: Enterovirus as the cause of diseases classified to other chapters

B97.1 is the ICD-10-CA code for “Enterovirus as the cause of diseases classified to other chapters” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

B97.1

Enterovirus as the cause of diseases classified to other chapters

Short description: Enterovirus causing disease in oth chptr

ICD-10-CA · Canada · Also written B971

Index terms

Entries in CIHI’s alphabetical index that lead to B97.1. Searching the index by the condition the note names is how coders reach this code.

  • Echovirus, as cause of disease classified elsewhere
  • Enterovirus, as cause of disease classified elsewhere
  • Coxsackievirus (infection), as cause of disease classified elsewhere
  • Disease, diseased, echovirus NEC, as cause of disease classified elsewhere
  • Disease, diseased, coxsackie (virus) NEC, as cause of disease classified elsewhere
  • Infection, infected (opportunistic), echovirus, as cause of disease classified elsewhere
  • Disease, diseased, enteroviral, enterovirus NEC, as cause of disease classified elsewhere
  • Disease, diseased, nonarthropod borne NEC (viral), as cause of disease classified elsewhere
  • Infection, infected (opportunistic), enterovirus NEC, as cause of disease classified elsewhere
  • Infection, infected (opportunistic), coxsackie(virus), as cause of disease classified elsewhere
  • Infection, infected (opportunistic), virus NEC, echo(virus), as cause of disease classified elsewhere
  • Infection, infected (opportunistic), virus NEC, enterovirus NEC, as cause of disease classified elsewhere

Notes for B97.1

As CIHI prints them, with any note B97.1 takes from the headings above it.

Includes

  • CoxsackievirusEchovirus
  • Diseases generally recognized as communicable or transmissibleFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)

Use additional code

Add a code for this detail when the note documents it.

  • Use additional code (U82-U84) to identify resistance to antimicrobial drugsFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)

Excludes

Conditions classified elsewhere.

  • Carrier or suspected carrier of infectious disease (Z22.-)certain localized infections - see body system-related chaptersinfectious and parasitic diseases:• complicating pregnancy, childbirth and the puerperium [except obstetrical tetanus] (O98.-)• specific to the perinatal period [except tetanus neonatorum, whooping cough, congenital syphilis, perinatal gonococcal infection and perinatal human immunodeficiency virus [HIV] disease] (P35-P39)influenza and other acute respiratory infections (J00-J22)From Chapter 1: Certain infectious and parasitic diseases (A00-B99)

Note

  • These categories should never be used in primary coding. They are provided for use as supplementary or additional codes when it is desired to identify the infectious agent(s) in diseases classified elsewhere.From B95-B98 Bacterial, viral and other infectious agents

Where B97.1 sits

  1. 1ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
  2. 2Block B95-B98Bacterial, viral and other infectious agents
  3. 3Category B97Viral agents as the cause of diseases classified to other chapters
  4. 4Valid code B97.1Enterovirus as the cause of diseases classified to other chapters

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

Frequently asked questions

What does ICD-10-CA code B97.1 mean?

B97.1 is the ICD-10-CA code for “Enterovirus as the cause of diseases classified to other chapters” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is B97.1 in ICD-10-CA?

B97.1 sits under B97 Viral agents as the cause of diseases classified to other chapters, within B95-B98 Bacterial, viral and other infectious agents, within Chapter 1: Certain infectious and parasitic diseases (A00-B99).

What coding notes apply to B97.1?

ICD-10-CA lists Includes, Note, Use additional code, Excludes notes for B97.1, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.