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ICD-10 diagnosis code

G31.9 Degenerative disease of nervous system, unspecified

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G31.9 is the ICD-10 code for Degenerative disease of nervous system, unspecified. It is a four-character subcategory of G31 (Other degenerative diseases of nervous system, not elsewhere classified), the most specific level in the WHO edition. It belongs to the block G30–G32 (Other degenerative diseases of the 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

G31.9 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

G31.9Degenerativ sjukdom i nervsystemet, ospecificerad

NorwayICD-10-NO

G31.9Uspesifisert degenerativ sykdom i sentralnervesystemet

DenmarkICD-10-DK

DG319Degenerativ sygdom i nervesystemet UNS

FinlandICD-10-FI

G31.9Määrittämätön hermoston rappeutumissairaus

GermanyICD-10-GM

G31.9Degenerative Krankheit des Nervensystems, nicht näher bezeichnet

FranceICD-10-FR

G31.9Affection dégénérative du système nerveux, sans précision

NetherlandsICD-10-NL

G31.9degeneratieve ziekte van zenuwstelsel, niet-gespecificeerd

United StatesICD-10-CM

G31.9Degenerative disease of nervous system, 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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