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ICD-10 diagnosis code

R94.0 Abnormal results of function studies of central nervous system

This page in Swedish

R94.0 is the ICD-10 code for Abnormal results of function studies of central nervous system. It is a four-character subcategory of R94 (Abnormal results of function studies), the most specific level in the WHO edition. It belongs to the block R90–R94 (Abnormal findings on diagnostic imaging and in function studies, without diagnosis) in Chapter XVIII, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

Code type
Subcategory (4 characters)
Chapter
XVIII · R00–R99
Classification
WHO ICD-10, 2019 version

What R94.0 includes

Conditions and terms that are coded here.

  • Abnormal electroencephalogram [EEG]

R94.0 in national editions

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

SwedenICD-10-SE

R94.0Onormala resultat av funktionsundersökningar av centrala nervsystemet

NorwayICD-10-NO

R94.0Unormalt resultat ved funksjonsstudie av sentralnervesystemet

DenmarkICD-10-DK

DR940Abnormt fund ved funktionsundersøgelse af centralnervesystemet

  • DR940AElektroencefalografi, abnorm
  • DR940BUden reaktioner og uden sedationsbehov, dvs. mistanke om hjernedød
FinlandICD-10-FI

R94.0Keskushermoston toimintatutkimusten poikkeavat tulokset

GermanyICD-10-GM

R94.0Abnorme Ergebnisse von Funktionsprüfungen des Zentralnervensystems

FranceICD-10-FR

R94.0Résultats anormaux d'explorations fonctionnelles du système nerveux central

NetherlandsICD-10-NL

R94.0afwijkende uitslagen van functieonderzoek van centraal zenuwstelsel

United StatesICD-10-CM

Listed through more specific codes:

  • R94.01Abnormal electroencephalogram [EEG]
  • R94.02Abnormal brain scan
  • R94.09Abnormal results of other function studies of central nervous system

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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