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  2. ICD-10-CM Codes List
  3. A00–B99
  4. A80-A89
  5. Other viral infections of central nervous system, not elsewhere classified (A88)

Other viral infections of central nervous system, not elsewhere classified (A88)

ICD-10 code A88 covers a group of viral infections affecting the central nervous system (CNS) that are not classified elsewhere. These codes help identify specific viral diseases of the brain and nerves when other more common categories do not apply.

Under A88.0, the code is used for enteroviral exanthematous fever, also known as Boston exanthem or enteroviral exanthem, which is a viral illness manifesting with fever and rash involving the CNS. A88.1 is assigned to cases of epidemic vertigo, a condition linked to viral infection of the vestibular nerve causing dizziness and balance problems, sometimes called viral vestibular nerve disorder. The code A88.8 includes a broader range of other specified viral CNS infections, such as infections caused by enteroviruses, Coxsackievirus, echovirus, Epstein-Barr virus, measles virus, parvoviruses, and Cache Valley virus, all capable of invading the nervous system. These codes are specifically utilized when viral CNS infections are present but do not fit the criteria for other defined neuropathologies, making them essential for accurate identification and treatment planning in neurological viral diseases.

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • viral encephalitis NOS A86
  • viral meningitis NOS A87.9