AutoICD API

A85.8

Billable

Other specified viral encephalitis

Other specified viral encephalitis

Status

Billable / Specific

Block

A80-A89

Parent Code

A85

ICD-11 Mapping

1 equivalent

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Encephalitis lethargica
  • Von Economo-Cruchet disease

Includes

Conditions included under this code

  • diseases generally recognized as communicable or transmissible
  • specified viral encephalomyelitis NEC
  • specified viral meningoencephalitis NEC

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

Use Additional Code

Additional codes that should follow this code

Related Codes(3)
A85.0

Enteroviral encephalitis

BillableA85.1

Adenoviral encephalitis

BillableA85.2

Arthropod-borne viral encephalitis, unspecified

Billable
ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

1C80Viral encephalitis, not elsewhere classifiedequivalentPrimary
Also Known As / Clinical Terms(316)

SNOMED CT

UMLS

Clinical Terms

  • HTLV I infection
  • encephalitis lethargic
  • Infection caused by Henipavirus
  • Tensaw encephalitis
  • Encephalitis caused by Rift Valley fever virus
  • Tensaw fever
  • Disease caused by Deltaretrovirus
  • Encephalitis caused by Henipavirus
  • Thogoto fever
  • Human T-lymphotropic virus 2 infection
  • Encephalitis caused by Filoviridae
  • Von Economo's disease
  • Encephalitis caused by coxsackie virus
  • Encephalitis caused by Langat virus
  • Vilyuisk human encephalitis virus encephalitis
  • Encephalitis caused by BK polyomavirus
  • Viral haemorrhagic fever, Rift valley
  • Nervous system disease caused by human enterovirus
  • Polyomavirus encephalitis
  • Encephalitis caused by Retroviridae
  • Encephalitis caused by Lagos bat virus
  • Neuroinvasive Cache Valley encephalitis virus infection
  • Encephalitis caused by Nipah virus
  • Human T-cell lymphotropic virus 1 infection
  • Encephalitis caused by Toscana virus
  • Hendra virus infection
  • Paramyxoviridae encephalitis
  • Encephalitis caused by Lymphocytic choriomeningitis virus
  • Hantaan virus encephalitis
  • Kumlinge virus encephalitis
  • Encephalitis lethargica (disorder)
  • Rio Bravo fever
  • Bornavirus encephalitis
  • Human T-lymphotropic virus infection
  • Lagos bat virus encephalitis
  • Disease caused by Filoviridae
  • Coxsackie virus encephalitis
  • Morbillivirus encephalitis
  • Negishi encephalitis
  • Nipah virus encephalitis
  • Disease caused by Hantaanvirus
  • Invasive viral infectious disease
  • Vesiculovirus encephalitis
  • Puumala virus encephalitis
  • Human T-cell lymphotropic virus (HTLV) 1 infection
  • Tickborne encephalitis
  • HIV - Human immunodeficiency virus encephalitis
  • Rio Bravo viral encephalitis
  • Arenavirus encephalitis
  • Encephalitis caused by Borna disease virus
  • Disease caused by Hantavirus
  • Infection caused by Hendra virus
  • RB - Rio Bravo fever
  • Human T-lymphotropic virus 1 infection
  • Hantavirus infection
  • Encephalitis caused by Vilyuisk human encephalitis virus
  • Disease caused by Flaviviridae
  • Rift Valley virus encephalitis
  • Epstein Barr virus infection of the central nervous system
  • Encephalitis caused by human parechovirus
  • Encephalitis caused by tick-borne encephalitis virus
  • Encephalitis caused by Mokola virus
  • Encephalitis caused by parechovirus
  • Rio Bravo encephalitis
  • HTLV-II infection
  • Viral hemorrhagic fever, Rift valley
  • HTLV 1 infection
  • Encephalitis caused by European subtype of tick-borne encephalitis virus
  • Disease caused by Vesiculovirus
  • Rhabdovirus encephalitis
  • Cache Valley virus infection
  • Mokola virus encephalitis
  • Retroviridae encephalitis
  • Western European tick-borne encephalitis
  • encephalitis lethargica
  • Invasive viral infection
  • Human immunodeficiency virus encephalitis
  • Thogoto virus disease
  • Disease caused by BK polyomavirus
  • Infection caused by Rubulavirus
  • Encephalitis caused by human herpesvirus 4
  • Alphavirus encephalitis
  • BK polyomavirus encephalitis
  • Encephalitis caused by human T-lymphotropic virus type 1
  • Encephalitis caused by Morbillivirus
  • Encephalitis caused by Rubulavirus
  • Encephalitis caused by Hantaan virus
  • Encephalitis caused by Puumala virus
  • Encephalitis caused by Vesiculovirus
  • Encephalitis caused by human coxsackievirus
  • Infection caused by Nipah virus
  • Mokola virus disease
  • Encephalitis caused by human T-lymphotropic virus type 2
  • Rubulavirus infection
  • Diphasic milk fever
  • Orthopoxvirus encephalitis
  • Von Economo-Cruchet disease
  • Encephalitis caused by Alphavirus
  • Biundulant meningoencephalitis
  • Arbovirus encephalitis
  • CEE - Central European encephalitis
  • Hendra virus encephalitis
  • Encephalitis caused by human respiratory syncytial virus
  • Encephalitis caused by Louping ill virus
  • Human T-lymphotropic virus type 1 encephalitis
  • Australian bat lyssavirus encephalitis
  • Encephalitis caused by Arenavirus
  • von Economo's encephalitis
  • Encephalitis caused by Paramyxoviridae
  • Diphasic meningoencephalitis
  • Encephalitis caused by Kyasanur Forest disease virus
  • Toscana virus encephalitis
  • Encephalitis caused by Orthopoxvirus
  • Disease caused by Hantanvirus
  • Encephalitis caused by Australian bat lyssavirus
  • Encephalitis caused by Bunyaviridae
  • Central European encephalitis
  • Lymphocytic choriomeningitis virus infection
  • Encephalitis caused by Polyomavirus
  • Kyasanur Forest disease virus encephalitis
  • Langat encephalitis
  • Cache Valley encephalitis
  • Henipavirus infection
  • Tensaw virus disease
  • Bunyaviridae encephalitis
  • Encephalitis caused by Hendra virus
  • Enteroviral neurological disease
  • Infection caused by Human T-lymphotropic virus
  • Henipavirus encephalitis
  • Respiratory syncytial virus encephalitis
  • Disease caused by Nairovirus
  • Neuroinvasive Cache Valley virus disease
  • CV virus infection
  • Borna virus encephalitis
  • Louping ill virus encephalitis
  • Cache Valley virus disease
  • Nairoviral encephalitis
  • Human T-lymphotropic virus type 2 encephalitis
  • Rubulavirus encephalitis
  • Flavivirus encephalitis
  • Epstein-Barr virus encephalitis
  • Encephalitis caused by Epstein-Barr virus
  • HTLV-2 infection
  • Central European tick-borne encephalitis
  • Coxsackievirus infection of the central nervous system
  • Encephalitis caused by respiratory syncytial virus
  • Infection caused by Lymphocytic choriomeningitis virus
  • Rift valley fever
  • Arboviral encephalitis
  • Filovirus encephalitis
  • Parechovirus encephalitis
  • Encephalitis caused by Flavivirus
  • Lymphocytic choriomeningitis virus encephalitis
  • TBE - Central European tick-borne encephalitis
  • economo encephalitis
Frequently Asked Questions
What is the ICD-10 code for other specified viral encephalitis?

The ICD-10-CM code for other specified viral encephalitis is A85.8. The full clinical description is "Other specified viral encephalitis". A85.8 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code A85.8 mean?

ICD-10-CM code A85.8 represents “Other specified viral encephalitis”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a billable/specific code that can be used on a claim.

Is A85.8 a billable code?

Yes, A85.8 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is A85.8 in?

A85.8 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).

What codes cannot be used with A85.8?

A85.8 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters; postpolio syndrome (G14); sequelae of poliomyelitis (B91); and 10 more.

Are additional codes required with A85.8?

Yes, when using A85.8, also report: resistance to antimicrobial drugs (Z16.-).

What SNOMED CT codes does A85.8 map to?

A85.8 maps to 74 SNOMED CT concepts: 721766005, 192687008, 1163106008, 1163103000, 1163104006, and 69 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for A85.8?

A85.8 is linked to 3 UMLS Concept Unique Identifiers: C0014040, C0348170, C2900457. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does A85.8 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other specified viral encephalitis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of A85.8?

A85.8 maps to the ICD-11 code: 1C80 (Viral encephalitis, not elsewhere classified).

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.