2027 ICD-10-CM Diagnosis Code B97.11Coxsackievirus as the cause of diseases classified elsewhere

ICD-10-CM Codes›A00–B99›B95-B97›B97

ICD-10-CM B97.11
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

B97.11 is a billable ICD-10-CM diagnosis code for coxsackievirus as the cause of diseases classified elsewhere. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 865 through 866. The code is not accepted as a principal diagnosis by the Medicare Code Editor. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Viral infection.

Code Identity

ICD-10-CM Code
B97.11
Billable Status
Yes — Valid for Submission
Code Describes
Coxsackievirus as the cause of diseases classified elsewhere
Short Description
Coxsackievirus as the cause of diseases classified elsewhere
Same as the full description in the CMS dataset.
Parent Code
B97.1
Enterovirus as the cause of diseases classified elsewhere

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB95-B97Bacterial and viral infectious agents
CategoryB97Viral agents as the cause of diseases classified elsewhere
This CodeB97.11Coxsackievirus as the cause of diseases classified elsewhere

Code EditsBilling

Medicare Code Editor checks that affect claim validity for B97.11.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute myocarditis - coxsackie
  • Acute viral carditis
  • Coxsackie carditis
  • Coxsackie muscle infection
  • Coxsackie myocarditis
  • Coxsackie virus encephalitis
  • Coxsackie virus infection of oral cavity
  • Coxsackievirus infection of the central nervous system
  • Eczema coxsackium
  • Enteroviral neurological disease
  • Enterovirus heart infection
  • Infected eczema
  • Myelitis caused by Enterovirus
  • Myelitis caused by Human coxsackievirus A
  • Myelitis caused by Human coxsackievirus B
  • Neonatal coxsackie myocarditis
  • Neonatal coxsackie virus syndrome

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to B97.11: its own notes plus those printed at block B95-B97 and Chapter 1. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • diseases generally recognized as communicable or transmissible

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • 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

Add a second code, after this one, to fully describe the condition.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • code to identify resistance to antimicrobial drugs (Z16.-)

Notes

General instructions on how these codes are used.

From Block B95-B97 Bacterial and viral infectious agents applies to 46 codes
  • These categories are provided for use as supplementary or additional codes to identify the infectious agent(s) in diseases classified elsewhere.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name B97.11, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming B97.11: they are not reported together with it, unless the two conditions are unrelated.

  • B34 Viral infection of unspecified site
    viral agents as the cause of diseases classified elsewhere (B97.-) names B97.-, which includes this code

Use Additional Code 52

These codes say to use an additional code from the note, and B97.11 is one of the codes named.

  • J95.851 Ventilator associated pneumonia
    code to identify the organism, if known (B95.-, B96.-, B97.-) names B97.-, which includes this code
  • P23.0 Congenital pneumonia due to viral agent
    code (B97) to identify organism names B97, which includes this code
  • E06.0 Acute thyroiditis
    code (B95-B97) to identify infectious agent. names B95-B97, which includes this code
  • G06 Intracranial and intraspinal abscess and granuloma
    code (B95-B97) to identify infectious agent. names B95-B97, which includes this code
  • H65 Nonsuppurative otitis media
    infectious agent (B95-B97) names B95-B97, which includes this code
  • I30.1 Infective pericarditis
    code (B95-B97) to identify infectious agent names B95-B97, which includes this code
  • I33.0 Acute and subacute infective endocarditis
    code (B95-B97) to identify infectious agent names B95-B97, which includes this code
  • I40.0 Infective myocarditis
    code (B95-B97) to identify infectious agent names B95-B97, which includes this code
  • J01 Acute sinusitis
    code (B95-B97) to identify infectious agent. names B95-B97, which includes this code
  • J02.8 Acute pharyngitis due to other specified organisms
    code (B95-B97) to identify infectious agent names B95-B97, which includes this code
  • J03.8 Acute tonsillitis due to other specified organisms
    code (B95-B97) to identify infectious agent. names B95-B97, which includes this code
  • J04 Acute laryngitis and tracheitis
    code (B95-B97) to identify infectious agent. names B95-B97, which includes this code
  • J05 Acute obstructive laryngitis [croup] and epiglottitis
    code (B95-B97) to identify infectious agent. names B95-B97, which includes this code
  • J06.9 Acute upper respiratory infection, unspecified
    code (B95-B97) to identify infectious agent, if known, such as: names B95-B97, which includes this code
  • J32 Chronic sinusitis
    infectious agent (B95-B97) names B95-B97, which includes this code

37 more Use Additional Code notes name this code. Browse all Use Additional Code notes.

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INF008
Viral infection
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Viral Infections

Viruses are very tiny germs. They are made of genetic material (either DNA or RNA) inside of a protein coating. There are a huge number of viruses on earth. Only a small number of them can infect humans. Those viruses can infect our cells, which may cause disease.

The full article covers:

  • What are viruses?
  • How are viruses spread?
  • How do viruses cause disease?
  • What are the treatments for viral infections?
  • Can viral infections be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert B97.11 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
079.2 Coxsackie virus inf NOS
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About B97.11Overview

What is the ICD-10 code for coxsackievirus as the cause of diseases classified elsewhere?

The ICD-10-CM code for coxsackievirus as the cause of diseases classified elsewhere is B97.11 (sometimes written as B9711). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is B97.11 (Enterovirus as the cause of diseases classified elsewhere) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report coxsackievirus as the cause of diseases classified elsewhere on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does B97.11 group to?

On inpatient claims, coxsackievirus as the cause of diseases classified elsewhere maps to MS-DRG 866, 865, with relative weights from 0.8691 to 1.3153 depending on complications. Higher weights mean higher Medicare reimbursement.

Can B97.11 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because coxsackievirus as the cause of diseases classified elsewhere describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

What is the ICD-9 equivalent of B97.11?

Under the General Equivalence Mappings, coxsackievirus as the cause of diseases classified elsewhere converts to ICD-9-CM 079.2 (coxsackie virus inf NOS). The mapping is approximate, so confirm the match fits the documentation.