2024 ICD-10-CM Diagnosis Code A87.2

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Lymphocytic choriomeningitis

  • A87.2 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 A87.2 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of A87.2 – other international versions of ICD-10 A87.2 may differ.

Applicable To

  • Lymphocytic meningoencephalitis

The following code(s) above A87.2 contain annotation back-references

 that may be applicable to A87.2:

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

Clinical Information

  • A form of meningitis caused by lymphocytic choriomeningitis virus. Mice and other rodents serve as the natural hosts, and infection in humans usually occurs through inhalation or ingestion of infectious particles. Clinical manifestations include an influenza-like syndrome followed by stiff neck, alterations of mentation, ataxia, and incontinence. Maternal infections may result in fetal malformations and injury, including neonatal hydrocephalus, aqueductal stenosis, chorioretinitis, and microcephaly. (from Joynt, Clinical Neurology, 1996, ch26, pp1-3)
  • Benign viral infection of meninges and central nervous system producing an infiltration of lymphocytes in the choroid plexus.

ICD-10-CM A87.2 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

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

Convert A87.2 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 A87.2:

  • Type 1 Excludes: A85

Diagnosis Index entries containing back-references to A87.2:

  • Chorioencephalitis A87.2 (acute) (lymphocytic) (serous)
  • Choriomeningitis A87.2 (acute) (lymphocytic) (serous)
  • Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) G04.90
    • lymphatica A87.2
  • Lymphocytic
    • chorioencephalitis A87.2 (acute) (serous)
    • choriomeningitis A87.2 (acute) (serous)
    • meningoencephalitis A87.2
  • Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) G03.9
    • lymphocytic A87.2 (acute) (benign) (serous)
  • MeningoencephalitisG04.90 – see also Encephalitis
    • lymphocytic A87.2 (serous)