2024 ICD-10-CM Diagnosis Code A87.9

by

Viral meningitis, unspecified

  • A87.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2024 edition of ICD-10-CM A87.9 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of A87.9 – other international versions of ICD-10 A87.9 may differ.

The following code(s) above A87.9 contain annotation back-references

 that may be applicable to A87.9:

  • A00-B99  Certain infectious and parasitic diseases
  • A80-A89  Viral and prion infections of the central nervous system
  • A87  Viral meningitis

Approximate Synonyms

  • Viral meningitis

Clinical Information

  • Viral infections of the leptomeninges and subarachnoid space.
  • Viral infections of the leptomeninges and subarachnoid space. Togaviridae infections; flaviviridae infections; rubella; bunyaviridae infections; orbivirus infections; picornaviridae infections; orthomyxoviridae infections; rhabdoviridae infections; arenaviridae infections; herpesviridae infections; adenoviridae infections; jc virus infections; and retroviridae infections may cause this form of meningitis. Clinical manifestations include fever, headache, neck pain, vomiting, photophobia, and signs of meningeal irritation. (from Joynt, Clinical Neurology, 1996, ch26, pp1-3)

ICD-10-CM A87.9 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 075 Viral meningitis with cc/mcc
  • 076 Viral meningitis without cc/mcc

Convert A87.9 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change

Code annotations containing back-references to A87.9:

  • Type 1 Excludes: A88

Diagnosis Index entries containing back-references to A87.9:

  • Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) G03.9
    • viral NEC A87.9