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A81Atypical virus infections of central nervous system

ICD-10-CM category (non-billable header) code — part of Viral and prion infections of the central nervous system (A80-A89)

Code Details

BillableNo — use a more specific child code
ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
SectionViral and prion infections of the central nervous system (A80-A89)

Coding Notes

Includes

  • diseases of the central nervous system caused by prions

Use Additional Code

  • code, if applicable, to identify:
  • dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4)
  • dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-)
  • dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3)
  • dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2)
  • dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0)
  • mild neurocognitive disorder due to known physiological condition (F06.7-)

Subcategories (5)

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