ICD10BillableValid for clinical use

ICD-10 Code G11.19: Other early-onset cerebellar ataxia

G11.19 is a billable ICD-10 diagnosis code used to classify Other early-onset cerebellar ataxia in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the nervous system (G00-G99).

When is it used?

  • May be used when a clinician documents other early-onset cerebellar ataxia in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
6Diseases of the nervous system (G00-G99)
block
G10-G14Systemic atrophies primarily affecting the central nervous system
category
G11Hereditary ataxia
category
G11.1Early-onset cerebellar ataxia
currentG11.1

Official coding notes

Inclusion terms
  • Early-onset cerebellar ataxia with essential tremor
  • Early-onset cerebellar ataxia with myoclonus [Hunt's ataxia]
  • Early-onset cerebellar ataxia with retained tendon reflexes
  • X-linked recessive spinocerebellar ataxia

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

NeurologistGeneral PhysicianENT Specialist

Coverage-related procedures and services

CPT 95926high
SHORT-LATENCY SOMATOSENSORY EVOKED POTENTIAL STUDY, STIMULATION OF ANY/ALL PERIPHERAL NERVES OR SKIN SITES, RECORDING FROM THE CENTRAL NERVOUS SYSTEM; IN LOWER LIMBS
Source: CMS coverage guidance
CPT 95927high
SHORT-LATENCY SOMATOSENSORY EVOKED POTENTIAL STUDY, STIMULATION OF ANY/ALL PERIPHERAL NERVES OR SKIN SITES, RECORDING FROM THE CENTRAL NERVOUS SYSTEM; IN THE TRUNK OR HEAD
Source: CMS coverage guidance
CPT 95925high
SHORT-LATENCY SOMATOSENSORY EVOKED POTENTIAL STUDY, STIMULATION OF ANY/ALL PERIPHERAL NERVES OR SKIN SITES, RECORDING FROM THE CENTRAL NERVOUS SYSTEM; IN UPPER LIMBS
Source: CMS coverage guidance
HCPCS G0255high
CURRENT PERCEPTION THRESHOLD/SENSORY NERVE CONDUCTION TEST, (SNCT) PER LIMB, ANY NERVE
Source: CMS coverage guidance
CPT 95905high
MOTOR AND/OR SENSORY NERVE CONDUCTION, USING PRECONFIGURED ELECTRODE ARRAY(S), AMPLITUDE AND LATENCY/VELOCITY STUDY, EACH LIMB, INCLUDES F-WAVE STUDY WHEN PERFORMED, WITH INTERPRETATION AND REPORT
Source: CMS coverage guidance
CPT 95907high
NERVE CONDUCTION STUDIES; 1-2 STUDIES
Source: CMS coverage guidance

Coding guidelines

Common synonyms

Other early-onset cerebellar ataxia

Frequently asked questions

Code details

CodeG11.19
SystemICD10
Display nameOther early-onset cerebellar ataxia
ChapterDiseases of the nervous system (G00-G99)
BlockSystemic atrophies primarily affecting the central nervous system

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Ataxia, ataxy, ataxicAtaxia, ataxy, ataxicAtaxia, ataxy, ataxicAtaxia, ataxy, ataxicAtaxia, ataxy, ataxicDisease, diseasedDyssynergiaHunt'sRamsay-Hunt disease or syndromeSyndrome

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code G11.19 for Other early-onset cerebellar ataxia | HealthAssure