2027 ICD-10-CM Diagnosis Code B97.89Other viral agents as the cause of diseases classified elsewhere

ICD-10-CM Codes›A00–B99›B95-B97›B97

ICD-10-CM B97.89
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

B97.89 is a billable ICD-10-CM diagnosis code for other viral agents 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
B97.89
Billable Status
Yes — Valid for Submission
Code Describes
Other viral agents as the cause of diseases classified elsewhere
Short Description
Oth viral agents as the cause of diseases classd elswhr
Parent Code
B97.8
Other viral agents 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 CodeB97.89Other viral agents as the cause of diseases classified elsewhere

Code EditsBilling

Medicare Code Editor checks that affect claim validity for B97.89.

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 laryngotracheitis
  • Acute pancreatitis due to infection
  • Acute sialoadenitis
  • Acute sinusitis caused by virus
  • Acute tracheitis
  • Acute viral laryngotracheitis
  • Acute viral sialadenitis
  • Arthropathy associated with viral disease
  • BK virus nephropathy
  • Chorioamnionitis
  • Chorioamnionitis caused by virus
  • Congenital pneumonia
  • Congenital viral pneumonia
  • Disease caused by Alphavirus
  • Disease caused by BK polyomavirus
  • Disease caused by Flaviviridae
  • Disease caused by Orbivirus
  • Disease caused by Orthomyxoviridae
  • Disease caused by Paramyxoviridae
  • Disease caused by Picornaviridae
  • Disease caused by Polyomaviridae
  • Disease caused by Poxviridae
  • Disease caused by Rhabdoviridae
  • Disease caused by Togaviridae
  • Duodenal ulcer caused by virus
  • Enthesitis
  • Erythema multiforme due to viral disease
  • Febrile leukopenia
  • Gastric ulcer caused by virus
  • Infection causing spondyloarthritis
  • Infection involving inner ear
  • Infection of eye caused by Avian Paramyxovirus 1
  • Infection of lacrimal gland caused by virus
  • Infection of tendon sheath caused by virus
  • Infection of testis and epididymis
  • Infectious pancreatitis
  • Infective epididymitis
  • Infective epididymo-orchitis
  • Infective orchitis
  • Infective sialoadenitis
  • Infective ulcer of esophagus
  • Inflammation of larynx caused by virus
  • Influenza with laryngitis
  • Labyrinthitis of left inner ear
  • Labyrinthitis of right inner ear
  • Mumps epididymo-orchitis
  • Mumps orchitis
  • Myelitis caused by virus
  • Neonatal viral conjunctivitis
  • Parainfluenza virus laryngitis
  • Parainfluenza virus laryngotracheitis
  • Parainfluenza virus pharyngitis
  • Patient shedding virus
  • Postoperative urinary tract infection
  • Post-renal transplant nephropathy caused by BK polyomavirus
  • Post-renal transplant nephropathy caused by BK polyomavirus Banff class 1
  • Post-renal transplant nephropathy caused by BK polyomavirus Banff class 2
  • Post-renal transplant nephropathy caused by BK polyomavirus Banff class 3
  • Recurrent infection of skin caused by virus
  • Renal impairment caused by Polyomavirus
  • Rhabdomyolysis caused by virus
  • Severe fever with thrombocytopenia syndrome
  • Upper respiratory tract infection caused by influenza virus
  • Viral acute pancreatitis
  • Viral bursitis
  • Viral cystitis
  • Viral discitis
  • Viral endocarditis
  • Viral epiglottitis
  • Viral infection of cranial nerve
  • Viral kidney infection
  • Viral labyrinthitis
  • Viral labyrinthitis of left inner ear
  • Viral labyrinthitis of right inner ear
  • Viral retinitis
  • Viral sinusitis
  • Viral spondyloarthritis
  • Viral tracheitis
  • Viral ulcer of esophagus

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to B97.89: 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 B97.89, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming B97.89: 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 B97.89 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 B97.89 to ICD-9-CMHistory

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

ICD-9-CM
079.89 Oth specf viral infectn
Approximate The match is approximate rather than exact.
ICD-9-CM
079.99 Viral infection 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 B97.89Overview

What is the ICD-10 code for other viral agents as the cause of diseases classified elsewhere?

The ICD-10-CM code for other viral agents as the cause of diseases classified elsewhere is B97.89 (sometimes written as B9789). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is B97.89 a billable code?

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

What MS-DRG does B97.89 group to?

On inpatient claims, other viral agents 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 B97.89 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because other viral agents 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 B97.89?

Under the General Equivalence Mappings, other viral agents as the cause of diseases classified elsewhere converts to ICD-9-CM 079.89 (oth specf viral infectn) and 079.99 (viral infection NOS). The mapping is approximate, so confirm the match fits the documentation.