G04.0 is the ICD-10 code for Acute disseminated encephalitis. It is a four-character subcategory of G04 (Encephalitis, myelitis and encephalomyelitis), the most specific level in the WHO edition. It belongs to the block G00–G09 (Inflammatory diseases of the central nervous system) in Chapter VI, Diseases of the nervous system.
- Code type
- Subcategory (4 characters)
- Chapter
- VI · G00–G99
- Classification
- WHO ICD-10, 2019 version
What G04.0 includes
Conditions and terms that are coded here.
- Encephalitis
- postimmunization
- Encephalomyelitis
- postimmunization
Coding notes
- Use additional external cause code (Chapter XX), if desired, to identify vaccine.
G04.0 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
G04.0Akutt disseminert encefalitt
DG040Akut dissemineret encefalitis
- DG040AEncefalitis eller encefalomyelitis efter vaccination
G04.0Akute disseminierte Enzephalitis
G04.0Encéphalite aigüe disséminée
G04.0acute gedissemineerde-encefalitis
Listed through more specific codes:
- G04.00Acute disseminated encephalitis and encephalomyelitis, unspecified
- G04.01Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)
- G04.02Postimmunization acute disseminated encephalitis, myelitis and encephalomyelitis
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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