2026 ICD-10-CM Diagnosis Code A87Viral meningitis

ICD-10-CM Codes›A00–B99›A80-A89›A87

ICD-10-CM A87
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A87 is a non-billable ICD-10-CM category code for viral meningitis, so it cannot be submitted on claims. Use a more specific code from this category instead, such as A87.0, A87.1, A87.2, and A87.8.

Code Identity

ICD-10-CM Code
A87
Billable Status
No — Non-Billable Category
Code Describes
Viral meningitis
Chapter
A80-A89
Viral and prion infections of the central nervous system

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA80-A89Viral and prion infections of the central nervous system
CategoryA87Viral meningitis
This CodeA87Viral meningitis

Specific Coding for Viral meningitisOverview

Non-specific codes like A87 require more characters. Use one of these billable codes instead:

  • Use A87.0 for Enteroviral meningitis

  • Use A87.1 for Adenoviral meningitis

  • Use A87.2 for Lymphocytic choriomeningitis

  • Use A87.8 for Other viral meningitis

  • Use A87.9 for Viral meningitis, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • meningitis due to herpesvirus herpes simplex B00.3
  • meningitis due to herpesvirus herpes simplex B00.3
  • meningitis due to measles virus B05.1
  • meningitis due to mumps virus B26.1
  • meningitis due to poliomyelitis virus A80
  • meningitis due to zoster B02.1

Clinical InformationClinical

  • GAIA Level 3a Neonatal Infectious Meningitis|Global Alignment of Immunization safety Assessment in pregnancy Level 3a Neonatal Infectious Meningitis|Level 3a Neonatal Bacterial/Fungal/Viral Meningitis

    gaia level 3a neonatal infectious meningitis is defined by four criteria: first, csf pleocytosis; second, no recognized pathogen is identified, using a validated method, from a normally sterile site; third, temperature greater than or equal to 37.5 degrees c or less than 35.5 degrees c; fourth, three or more of the following requirements must be met: a) history of convulsions; b) lethargy or irritability; c) coma; d) apnea; e) bulging fontanel; f) neck stiffness.

  • Viral Meningitis

    inflammation of the membranes surrounding the brain and spinal cord due to a viral infection.

Patient EducationClinical

Meningitis

Meningitis is inflammation of the thin tissue that surrounds the brain and spinal cord, called the meninges. There are several types of meningitis. The most common is viral meningitis. You get it when a virus enters the body through the nose or mouth and travels to the brain. Bacterial meningitis is rare but can be deadly.

Read the full article at MedlinePlus

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

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About A87Overview

Is A87 (Viral meningitis) a billable code?

No. This is a category header that groups the codes for viral meningitis, and headers cannot be submitted on claims. Claims for viral meningitis need a more specific code from this category, such as A87.0, A87.1, and A87.2.