A89

Unspecified viral infection of central nervous system

Billable / specific

A89 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes

  • diseases generally recognized as communicable or transmissible

Excludes1

Not coded here — never report together with this code.

  • postpolio syndrome (G14)
  • sequelae of poliomyelitis (B91)
  • sequelae of viral encephalitis (B94.1)

Excludes2

Not included here — may be reported together when both conditions exist.

  • 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 code to identify the following, if applicable.

  • code to identify resistance to antimicrobial drugs (Z16.-)

Also known as

  • Infection, infected, infective, virus, viral NOS, central nervous system

Related codes

  • A80Acute poliomyelitisHeader
  • A81Atypical virus infections of central nervous systemHeader
  • A82RabiesHeader
  • A83Mosquito-borne viral encephalitisHeader
  • A84Tick-borne viral encephalitisHeader
  • A85Other viral encephalitis, not elsewhere classifiedHeader
  • A86Unspecified viral encephalitisBillable
  • A87Viral meningitisHeader
  • A88Other viral infections of central nervous system, not elsewhere classifiedHeader

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