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ICD-10 diagnosis code

G11.1 Early-onset cerebellar ataxia

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G11.1 is the ICD-10 code for Early-onset cerebellar ataxia. It is a four-character subcategory of G11 (Hereditary ataxia), the most specific level in the WHO edition. It belongs to the block G10–G14 (Systemic atrophies primarily affecting 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 G11.1 includes

Conditions and terms that are coded here.

  • Early-onset cerebellar ataxia with:
    • essential tremor
    • myoclonus [Hunt ataxia]
    • retained tendon reflexes
  • Friedreich ataxia (autosomal recessive)
  • X-linked recessive spinocerebellar ataxia

Coding notes

  • Onset usually before the age of 20

G11.1 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

G11.1Cerebellär ataxi med tidig debut

NorwayICD-10-NO

G11.1Cerebellar ataksi med tidlig debut

DenmarkICD-10-DK

DG111Ataxia cerebellaris med tidlig debut

  • DG111AKønsbunden recessiv ataxia spinocerebellaris
  • DG111BAtaxia spinalis hereditaria
  • DG111CFriedreichs ataksi
FinlandICD-10-FI

Listed through more specific codes:

  • G11.10Varhain alkava pikkuaivoataksia, jossa jännerefleksit säilyvät
  • G11.11[Autosomissa peittyvästi periytyvä] Friedreichin ataksia
  • G11.12Varhain alkava pikkuaivoataksia ja myoklonia (Huntin ataksia)
  • G11.13Marinesco-Sjögrenin oireyhtymä
  • G11.14Varhain alkava pikkuaivoataksia ja essentiaalinen vapina
  • G11.18Muu varhain alkava pikkuaivoataksia
GermanyICD-10-GM

G11.1Früh beginnende zerebellare Ataxie

FranceICD-10-FR

G11.1Ataxie cérébelleuse à début précoce

NetherlandsICD-10-NL

G11.1vroeg optredende cerebellaire ataxie

United StatesICD-10-CM

Listed through more specific codes:

  • G11.10Early-onset cerebellar ataxia, unspecified
  • G11.11Friedreich ataxia
  • G11.19Other early-onset cerebellar ataxia

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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