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ICD-10 diagnosis code

G04.9 Encephalitis, myelitis and encephalomyelitis, unspecified

This page in Swedish

G04.9 is the ICD-10 code for Encephalitis, myelitis and encephalomyelitis, unspecified. 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 G04.9 includes

Conditions and terms that are coded here.

  • Ventriculitis (cerebral) NOS

G04.9 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

G04.9Encefalit, myelit och encefalomyelit, ospecificerad

  • G04.9AEncefalit, ospecificerad
  • G04.9BMyelit, ospecificerad
NorwayICD-10-NO

G04.9Uspesifisert encefalitt, myelitt eller encefalomyelitt

DenmarkICD-10-DK

DG049Encefalitis, myelitis eller encefalomyelitis UNS

  • DG049AEncefalitis UNS
  • DG049BEncephalomyelitis UNS
  • DG049CMyelitis UNS
  • DG049DCerebral ventrikulitis UNS
FinlandICD-10-FI

G04.9Määrittämätön aivotulehdus, selkäydintulehdus tai aivo-selkäydintulehdus

GermanyICD-10-GM

G04.9Enzephalitis, Myelitis und Enzephalomyelitis, nicht näher bezeichnet

FranceICD-10-FR

G04.9Encéphalite, myélite et encéphalomyélite, sans précision

NetherlandsICD-10-NL

G04.9encefalitis, myelitis en encefalomyelitis, niet-gespecificeerd

United StatesICD-10-CM

Listed through more specific codes:

  • G04.90Encephalitis and encephalomyelitis, unspecified
  • G04.91Myelitis, unspecified

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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