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Chapters ENES DE

01Certain infectious or parasitic diseases
Viral infections of the central nervous system

1C8G category

Tick-borne encephalitis

4 subordinate codes

1C8G.0Far Eastern tick-borne encephalitis
1C8G.1Central European tick-borne encephalitis
1C8G.2Siberian tick-borne encephalitis
4B4ZDiseases of the immune system, unspecified

Nearby in Viral infections of the central nervous system

1C80Viral encephalitis, not elsewhere classified
1C81Acute poliomyelitis
1C82Rabies
1C83Western equine encephalitis
1C84Eastern equine encephalitis
1C85Japanese encephalitis
1C86St Louis encephalitis
1C87Rocio viral encephalitis

Previous1C8F — Lymphocytic choriomeningitis Next1C8H — Viral myelitis, not elsewhere classified

Browse ICD-11

01Certain infectious or parasitic diseases
02Neoplasms
03Diseases of the blood or blood-forming organs
04Diseases of the immune system
05Endocrine, nutritional or metabolic diseases
06Mental, behavioural or neurodevelopmental disorders
07Sleep-wake disorders
08Diseases of the nervous system
09Diseases of the visual system
10Diseases of the ear or mastoid process
11Diseases of the circulatory system
12Diseases of the respiratory system
13Diseases of the digestive system
14Diseases of the skin
15Diseases of the musculoskeletal system or connective tissue
16Diseases of the genitourinary system
17Conditions related to sexual health
18Pregnancy, childbirth or the puerperium
19Certain conditions originating in the perinatal period
20Developmental anomalies
21Symptoms, signs or clinical findings, not elsewhere classified
22Injury, poisoning or certain other consequences of external causes
23External causes of morbidity or mortality
24Factors influencing health status or contact with health services
25Codes for special purposes
26Supplementary Chapter Traditional Medicine Conditions
VSupplementary section for functioning assessment
XExtension Codes
1B70-1B7ZPyogenic bacterial infections of the skin or subcutaneous tissues
1B90-1B9ZCertain zoonotic bacterial diseases
1C10-1C4ZOther bacterial diseases
1C60-1C62.ZHuman immunodeficiency virus disease
1C80-1C8ZViral infections of the central nervous system
1D00-1D0ZNon-viral or unspecified infections of the central nervous system
1D20-1D2ZDengue
1D40-1D4ZCertain arthropod-borne viral fevers
1D60-1D6ZCertain zoonotic viral diseases
14 more
1C83Western equine encephalitis
1C84Eastern equine encephalitis
1C85Japanese encephalitis
1C86St Louis encephalitis
1C87Rocio viral encephalitis
1C88Murray Valley encephalitis
1C8BCalifornia encephalitis
1C8CVenezuelan equine encephalitis
1C8DLa Crosse encephalitis
1C8EViral meningitis, not elsewhere classified
1C8FLymphocytic choriomeningitis
1C8GTick-borne encephalitis
1C8HViral myelitis, not elsewhere classified
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
3 more
1C8G.0Far Eastern tick-borne encephalitis
1C8G.1Central European tick-borne encephalitis
1C8G.2Siberian tick-borne encephalitis
4B4ZDiseases of the immune system, unspecified

International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).

Release 2026-01. View this entity in the official WHO ICD-11 browser.

This page reproduces WHO classification content for reference. It is not medical advice and must not be used to diagnose or treat. For coding decisions, consult the official release and your national coding guidelines.

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