ICD-10-CM › A00-B99 › A80-A89 › A81.8 Other atypical virus infections of... › A81.89
Other atypical virus infections of central nervous system
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2010 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2010 Added to the draft code set draft Other atypical virus infections of central nervous system
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from A81 Atypical virus infections of central nervous system
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-)
Includes
- diseases of the central nervous system caused by prions
Inherited from the A80-A89 section Viral and prion infections of the central nervous system (A80-A89)
Excludes1 - never coded here
- postpolio syndrome (G14)
- sequelae of poliomyelitis (B91)
- sequelae of viral encephalitis (B94.1)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Virus, viral > infection
- Infection, infected, infective > prion
- Infection, infected, infective > slow virus > specified NEC
- Disease, diseased > prion, central nervous system > specified NEC
- Infection, infected, infective > atypical > virus > specified type NEC
- Infection, infected, infective > virus, viral NOS > slow > specified NEC
- Infection, infected, infective > virus, viral NOS > central nervous system > atypical > specified NEC
- Infection, infected, infective > virus, viral NOS > central nervous system > slow virus > specified NEC
Codes in the same group
| Code | Description | Status |
|---|---|---|
| A81.81 | Kuru | Valid |
| A81.82 | Gerstmann-Straussler-Scheinker syndrome | Valid |
| A81.83 | Fatal familial insomnia | Valid |