A85.8
BillableOther specified viral encephalitis
Other specified viral encephalitis
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)
- certain localized infections - see body system-related chapters
- postpolio syndrome (G14)
- sequelae of poliomyelitis (B91)
- sequelae of viral encephalitis (B94.1)
- encephalitis due to cytomegalovirus (B25.8)
- encephalitis due to herpesvirus NEC (B10.0-)
- encephalitis due to herpesvirus [herpes simplex] (B00.4)
- encephalitis due to measles virus (B05.0)
- encephalitis due to mumps virus (B26.2)
- encephalitis due to poliomyelitis virus (A80.-)
- encephalitis due to zoster (B02.0)
- lymphocytic choriomeningitis (A87.2)
- myalgic encephalomyelitis (G93.32)
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
- code to identify resistance to antimicrobial drugs (Z16.-)
Also Known As / Clinical Terms
SNOMED CT
- Disease caused by Filoviridae198007
- Disease caused by Nairovirus1020003
- Negishi encephalitis6955002
- Tensaw fever9602009
- Tensaw virus disease9602009
- Biundulant meningoencephalitis16901001
- CEE - Central European encephalitis16901001
- Central European encephalitis16901001
- Central European tick-borne encephalitis16901001
- Diphasic meningoencephalitis16901001
- Diphasic milk fever16901001
- Encephalitis caused by European subtype of tick-borne encephalitis virus16901001
- TBE - Central European tick-borne encephalitis16901001
- Western European tick-borne encephalitis16901001
- RB - Rio Bravo fever23122001
- Rio Bravo encephalitis23122001
- Rio Bravo fever23122001
- Encephalitis caused by Langat virus40230002
- Langat encephalitis40230002
- Disease caused by Vesiculovirus49172000
- Thogoto fever51638003
- Thogoto virus disease51638003
- Mokola virus disease86707003
- Encephalitis lethargica186499007
- Von Economo's disease186499007
- von Economo's encephalitis186499007
- Arboviral encephalitis192687008
- Arbovirus encephalitis192687008
- Tensaw encephalitis230168006
- Kumlinge virus encephalitis230170002
- Rhabdovirus encephalitis230174006
- Disease caused by Hantavirus359761005
- Hantavirus infection359761005
- Disease caused by Hantaanvirus359763008
- Disease caused by Hantanvirus359763008
- HIV - Human immunodeficiency virus encephalitis398329009
- Human immunodeficiency virus encephalitis398329009
- Rift valley fever402917003
- Viral haemorrhagic fever, Rift valley402917003
- Viral hemorrhagic fever, Rift valley402917003
- Coxsackievirus infection of the central nervous system406568007
- Epstein Barr virus infection of the central nervous system406579002
- Infection caused by Nipah virus406597005
- Nairoviral encephalitis407472000
- Disease caused by Deltaretrovirus407519002
- Disease caused by Flaviviridae414014001
- Rio Bravo viral encephalitis415347009
- Cache Valley encephalitis417872000
- Neuroinvasive Cache Valley encephalitis virus infection417872000
- CV virus infection419034002
- Cache Valley virus disease419034002
- Cache Valley virus infection419034002
- Neuroinvasive Cache Valley virus disease420090003
- HTLV-2 infection425740005
- HTLV-II infection425740005
- Human T-lymphotropic virus 2 infection425740005
- HTLV 1 infection429659006
- HTLV I infection429659006
- Human T-cell lymphotropic virus (HTLV) 1 infection429659006
- Human T-cell lymphotropic virus 1 infection429659006
- Human T-lymphotropic virus 1 infection429659006
- Disease caused by BK polyomavirus431258001
- Encephalitis caused by tick-borne encephalitis virus712986001
- Tickborne encephalitis712986001
- Human T-lymphotropic virus infection721761000
- Infection caused by Human T-lymphotropic virus721761000
- Alphavirus encephalitis721766005
- Encephalitis caused by Alphavirus721766005
- Encephalitis caused by Polyomavirus721776008
- Polyomavirus encephalitis721776008
- Infection caused by Lymphocytic choriomeningitis virus721781004
- Lymphocytic choriomeningitis virus infection721781004
- Infection caused by Rubulavirus721787000
- Rubulavirus infection721787000
- Encephalitis caused by Rubulavirus721788005
- Rubulavirus encephalitis721788005
- Henipavirus infection721789002
- Infection caused by Henipavirus721789002
- Encephalitis caused by Hendra virus721790006
- Hendra virus encephalitis721790006
- Encephalitis caused by Nipah virus721791005
- Nipah virus encephalitis721791005
- Hendra virus infection773582002
- Infection caused by Hendra virus773582002
- Encephalitis caused by Henipavirus788915008
- Henipavirus encephalitis788915008
- Encephalitis caused by Mokola virus1163056000
- Mokola virus encephalitis1163056000
- Encephalitis caused by Lymphocytic choriomeningitis virus1163058004
- Lymphocytic choriomeningitis virus encephalitis1163058004
- Encephalitis caused by Lagos bat virus1163060002
- Lagos bat virus encephalitis1163060002
- Encephalitis caused by human T-lymphotropic virus type 11163061003
- Human T-lymphotropic virus type 1 encephalitis1163061003
- Encephalitis caused by human T-lymphotropic virus type 21163062005
- Human T-lymphotropic virus type 2 encephalitis1163062005
- Encephalitis caused by Hantaan virus1163064006
- Hantaan virus encephalitis1163064006
- Encephalitis caused by Vesiculovirus1163068009
- Vesiculovirus encephalitis1163068009
- Encephalitis caused by Retroviridae1163070000
- Retroviridae encephalitis1163070000
- Encephalitis caused by Rift Valley fever virus1163071001
- Rift Valley virus encephalitis1163071001
- Encephalitis caused by human parechovirus1163072008
- Encephalitis caused by parechovirus1163072008
- Parechovirus encephalitis1163072008
- Encephalitis caused by human respiratory syncytial virus1163073003
- Encephalitis caused by respiratory syncytial virus1163073003
- Respiratory syncytial virus encephalitis1163073003
- Encephalitis caused by Paramyxoviridae1163074009
- Paramyxoviridae encephalitis1163074009
- Encephalitis caused by Morbillivirus1163076006
- Morbillivirus encephalitis1163076006
- Encephalitis caused by Orthopoxvirus1163078007
- Orthopoxvirus encephalitis1163078007
- Encephalitis caused by Filoviridae1163096003
- Filovirus encephalitis1163096003
- Encephalitis caused by Flavivirus1163097007
- Flavivirus encephalitis1163097007
- Encephalitis caused by Epstein-Barr virus1163099005
- Encephalitis caused by human herpesvirus 41163099005
- Epstein-Barr virus encephalitis1163099005
- Coxsackie virus encephalitis1163100002
- Encephalitis caused by coxsackie virus1163100002
- Encephalitis caused by human coxsackievirus1163100002
- Bunyaviridae encephalitis1163102005
- Encephalitis caused by Bunyaviridae1163102005
- Australian bat lyssavirus encephalitis1163103000
- Encephalitis caused by Australian bat lyssavirus1163103000
- BK polyomavirus encephalitis1163104006
- Encephalitis caused by BK polyomavirus1163104006
- Arenavirus encephalitis1163106008
- Encephalitis caused by Arenavirus1163106008
- Enteroviral neurological disease1163535009
- Nervous system disease caused by human enterovirus1163535009
- Encephalitis caused by Vilyuisk human encephalitis virus1163548008
- Vilyuisk human encephalitis virus encephalitis1163548008
- Encephalitis caused by Kyasanur Forest disease virus1163550000
- Kyasanur Forest disease virus encephalitis1163550000
- Encephalitis caused by Louping ill virus1163551001
- Louping ill virus encephalitis1163551001
- Encephalitis caused by Toscana virus1177042002
- Toscana virus encephalitis1177042002
- Encephalitis caused by Puumala virus1177071001
- Puumala virus encephalitis1177071001
- Invasive viral infection1300187005
- Invasive viral infectious disease1300187005
- Borna virus encephalitis1335861005
- Bornavirus encephalitis1335861005
- Encephalitis caused by Borna disease virus1335861005
UMLS
- Encephalitis LethargicaC0014040
- Encephalitis lethargicaC0014040
- Encephalitis lethargica (disorder)C0014040
- Von Economo's diseaseC0014040
- economo encephalitisC0014040
- encephalitis lethargicC0014040
- encephalitis lethargicaC0014040
- von Economo's encephalitisC0014040
- Other specified viral encephalitisC0348170
- Von Economo-Cruchet diseaseC2900457
Frequently Asked Questions
What is ICD-10 code A85.8?
ICD-10-CM code A85.8 represents "Other specified viral encephalitis". It 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 you should also code: code to identify 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.
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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.