A84.9
BillableTick-borne viral encephalitis, unspecified
Tick-borne viral encephalitis, unspecified
Coding Notes
Includes
Conditions included under this code
- diseases generally recognized as communicable or transmissible
- tick-borne viral meningoencephalitis
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- certain localized infections - see body system-related chapters
- •postpolio syndromeG14
- •sequelae of poliomyelitisB91
- •sequelae of viral encephalitisB94.1
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)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(28)
SNOMED CT
UMLS
- ENCEPH TICK BORNEC0014061
- Encephalitis due to tick-borne encephalitis virus (navigational concept)C0014061
- Encephalitis, Tick BorneC0014061
- Encephalitis, Tick-BorneC0014061
- TICK BORNE ENCEPHC0014061
- Tick Borne EncephalitisC0014061
- Tick-Borne EncephalitisC0014061
- Tick-Borne Viral EncephalitisC0014061
- Tick-borne encephalitisC0014061
- Tick-borne viral encephalitisC0014061
- Tick-borne viral encephalitis, unspecifiedC0014061
- Viral encephalitis transmitted by tickC0014061
- Viral encephalitis transmitted by tick (navigational concept)C0014061
- tick borne encephalitisC0014061
- tick-borne encephalitisC0014061
Clinical Terms
- tick borne encephalitis
- Encephalitis, Tick Borne
- Tick-Borne Encephalitis
- Viral encephalitis transmitted by tick (navigational concept)
- TICK BORNE ENCEPH
- Encephalitis due to tick-borne encephalitis virus (navigational concept)
- ENCEPH TICK BORNE
- Encephalitis, Tick-Borne
- Viral encephalitis transmitted by tick
- Encephalitis caused by tick-borne encephalitis virus
- Tickborne encephalitis
Frequently Asked Questions
What is the ICD-10 code for tick-borne viral encephalitis, unspecified?
The ICD-10-CM code for tick-borne viral encephalitis, unspecified is A84.9. The full clinical description is "Tick-borne viral encephalitis, unspecified". A84.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code A84.9 mean?
ICD-10-CM code A84.9 represents “Tick-borne viral encephalitis, unspecified”. 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 A84.9 a billable code?
Yes, A84.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is A84.9 in?
A84.9 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with A84.9?
A84.9 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 1 more.
Are additional codes required with A84.9?
Yes, when using A84.9, also report: resistance to antimicrobial drugs (Z16.-).
What SNOMED CT codes does A84.9 map to?
A84.9 maps to 1 SNOMED CT concept: 712986001. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for A84.9?
A84.9 is linked to 1 UMLS Concept Unique Identifier: C0014061. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does A84.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like tick-borne viral encephalitis, unspecified 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 A84.9?
A84.9 maps to the ICD-11 code: 1C8G.Z (Tick-borne encephalitis, unspecified).
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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.