G11.9
BillableHereditary ataxia, unspecified
Hereditary ataxia, unspecified
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Hereditary cerebellar ataxia NOS
- Hereditary cerebellar degeneration
- Hereditary cerebellar disease
- Hereditary cerebellar syndrome
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •cerebral palsyG80
- •hereditary and idiopathic neuropathyG60
- •metabolic disordersE70-E88
Related Codes(8)
G11.0Congenital nonprogressive ataxia
G11.1Early-onset cerebellar ataxia
G11.2Late-onset cerebellar ataxia
G11.3Cerebellar ataxia with defective DNA repair
G11.4Hereditary spastic paraplegia
G11.5Hypomyelination - hypogonadotropic hypogonadism - hypodontia
G11.6Leukodystrophy with vanishing white matter disease
G11.8Other hereditary ataxias
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(232)
SNOMED CT
- Primary cerebellar degeneration23732000
- Cerebral ataxia28634005
- Primary hypersomnia36124002
- Hereditary cerebellar degeneration37650008
- Choreoathetosis43105007
- Paroxysmal choreoathetosis49949003
- Paroxysmal dyskinesia49949003
- Retinitis pigmentosa-deafness syndrome57838006
- Usher syndrome57838006
- Usher's syndrome57838006
- Gelineau's syndrome60380001
- Narcolepsy60380001
- Narcoleptic syndrome60380001
- Paroxysmal sleep60380001
- Hallgren's syndrome73119000
- Retinitis pigmentosa-deafness-ataxia syndrome73119000
- Hereditary choroidal atrophy74469006
- Hereditary choroidal dystrophy74469006
- Cerebellar ataxia85102008
- Holmes' disease85592008
- Primary progressive cerebellar degeneration85592008
- Posthemiplegic ataxia90791004
- Spinocerebellar disease91502009
- Cerebellar ataxia associated with another disorder192874000
- Progressive cerebellar ataxia230233000
- Paroxysmal dystonia230310003
- Chronic deafness232325008
- Cutaneous syndrome with ichthyosis239057002
- Conorenal syndrome254092004
- Renal dysplasia, retinal pigmentary dystrophy, cerebellar ataxia, skeletal dysplasia syndrome254092004
- Saldino-Mainzer dysplasia254092004
- Ichthyosis, cerebellar degeneration and hepatosplenomegaly403779009
- Episodic ataxia421455009
- Fragile X associated tremor ataxia syndrome448045004
- AOA1 (ataxia oculomotor apraxia type 1)715366004
- Ataxia oculomotor apraxia type 1715366004
- Autosomal recessive ataxia with oculomotor apraxia type 1715366004
- Autosomal recessive cerebellar ataxia with oculomotor apraxia type 1715366004
- Cerebellar ataxia and ectodermal dysplasia715371006
- Cerebellar ataxia co-occurrent with ectodermal dysplasia715371006
- Dystonia 9715564000
- Paroxysmal dystonic choreoathetosis with episodic ataxia and spasticity715564000
- Boucher Neuhäuser syndrome715984007
- Cerebellar ataxia with hypogonadism and choroidal dystrophy syndrome715984007
- Episodic ataxia type 7718752007
- Congenital cataract with ataxia and deafness syndrome719102004
- Ataxia with deafness and intellectual disability syndrome720517001
- Reardon Baraitser syndrome720517001
- CAPOS (cerebellar ataxia, areflexia, pes cavus, optic atrophy, sensorineural hearing loss) syndrome720634003
- Cerebellar ataxia, areflexia, pes cavus, optic atrophy, sensorineural hearing loss syndrome720634003
- EAST (epilepsy, ataxia, sensorineural deafness, and tubulopathy) syndrome721207002
- SESAME (seizures, sensorineural deafness, ataxia, mental retardation, electrolyte imbalance) syndrome721207002
- SESAME syndrome721207002
- Seizure, sensorineural deafness, ataxia, intellectual disability, electrolyte imbalance syndrome721207002
- Autosomal dominant cerebellar ataxia, deafness and narcolepsy syndrome722293005
- Ataxia due to mitochondrial mutations722967008
- ARCA2 - autosomal recessive cerebellar ataxia type 2725394006
- Autosomal recessive ataxia due to coenzyme Q10 deficiency725394006
- Autosomal recessive ataxia due to ubiquinone deficiency725394006
- Autosomal recessive spinocerebellar ataxia type 9725394006
- AOA2 - ataxia oculomotor apraxia type 2725408001
- Autosomal recessive cerebellar ataxia with oculomotor apraxia type 2725408001
- SCAR1 - spinocerebellar ataxia autosomal recessive 1725408001
- Spinocerebellar ataxia with axonal neuropathy type 2725408001
- Myoclonus, cerebellar ataxia, deafness syndrome733065003
- Hereditary ataxia763597000
- Early-onset progressive neurodegeneration, blindness, ataxia, spasticity syndrome771514002
- Autosomal recessive cerebellar ataxia, epilepsy, intellectual disability syndrome due to TUD deficiency773498006
- SCAR23 - spinocerebellar ataxia autosomal recessive type 23773498006
- Spinocerebellar ataxia autosomal recessive type 23773498006
- Gemignani syndrome782690007
- Spinocerebellar ataxia, amyotrophy, deafness syndrome782690007
- Autosomal recessive cerebellar ataxia due to STIP1 homology and U-box containing protein 1 deficiency782719004
- Autosomal recessive cerebellar ataxia due to STUB1 (STIP1 homology and U-box containing protein 1) deficiency782719004
- Autosomal recessive cerebellar ataxia due to STUB1 deficiency782719004
- SCAR16 - spinocerebellar ataxia autosomal recessive type 16782719004
- Spinocerebellar ataxia autosomal recessive type 16782719004
- Autosomal recessive cerebellar ataxia, epilepsy, intellectual disability syndrome due to RUBCN deficiency782721009
- Autosomal recessive cerebellar ataxia, epilepsy, intellectual disability syndrome due to RUN and cysteine rich domain containing beclin 1 interacting protein deficiency782721009
- Autosomal recessive cerebellar ataxia-epilepsy-intellectual disability syndrome due to RUBCN (RUN and cysteine rich domain containing beclin 1 interacting protein) deficiency782721009
- Autosomal recessive spinocerebellar ataxia type 15782721009
- SCAR15 - autosomal recessive spinocerebellar ataxia type 15782721009
- Salih ataxia782721009
- Infantile cerebellar and retinal degeneration782822006
- Ataxia with tapetoretinal degeneration syndrome783203003
- X-linked progressive cerebellar ataxia827172005
- Non-progressive cerebellar ataxia1119354003
- AOA4 - ataxia, oculomotor apraxia type 41217230002
- Cerebellar ataxia with oculomotor apraxia type 41217230002
- Optic atrophy, ataxia, peripheral neuropathy, global developmental delay syndrome1222655009
- Chorea due to hereditary ataxia1259691003
- PADDAS syndrome1260097007
- PUM1-associated developmental disability, ataxia, seizure syndrome1260097007
- Pumilio RNA binding family member 1-associated developmental disability, ataxia, seizure syndrome1260097007
- SCA47 - spinocerebellar ataxia type 471260097007
- Cerebellar ataxia, brain abnormalities, cardiac conduction defects syndrome1303586006
- Neurodevelopmental delay, hypotonia, cerebellar ataxia, cardiac conduction defects syndrome1303586006
- Neurodevelopmental delay, hypotonia, cerebellar atrophy, cardiac conduction defects syndrome1303586006
- Hereditary cerebellar atrophy431641000124107
- Retinal pigment epithelial dystrophy342581000119102
UMLS
- Cerebellar Ataxia, MarieC0270749
- Cerebellar Ataxia, Marie'sC0270749
- Hereditary Cerebellar AtaxiaC0270749
- Hereditary cerebellar ataxiaC0270749
- Hereditary cerebellar ataxia NOSC0270749
- Marie Cerebellar AtaxiaC0270749
- Marie cerebellar ataxiaC0270749
- Marie's Cerebellar AtaxiaC0270749
- Marie's cerebellar ataxiaC0270749
- Marie's cerebellar ataxia (disorder)C0270749
- familial cerebellar ataxiaC0270749
- hereditary cerebellar ataxiaC0270749
- marie's ataxiaC0270749
- Hereditary ataxia NOSC5779602
- Hereditary ataxia, unspecifiedC5779602
- Hereditary cerebellar degenerationC0270752
- Hereditary cerebellar degeneration (disorder)C0270752
- hereditary cerebellar degenerationC0270752
- Hereditary cerebellar diseaseC2875048
- Hereditary cerebellar syndromeC2875049
Clinical Terms
- Cutaneous syndrome with ichthyosis
- Autosomal recessive cerebellar ataxia with oculomotor apraxia type 1
- SCAR16 - spinocerebellar ataxia autosomal recessive type 16
- Hereditary Cerebellar Ataxia
- Cerebellar ataxia and ectodermal dysplasia
- Progressive cerebellar ataxia
- Conorenal syndrome
- Dystonia 9
- Autosomal recessive cerebellar ataxia, epilepsy, intellectual disability syndrome due to RUBCN deficiency
- Autosomal recessive spinocerebellar ataxia type 9
- Marie Cerebellar Ataxia
- Autosomal recessive cerebellar ataxia due to STUB1 deficiency
- Autosomal recessive ataxia with oculomotor apraxia type 1
- Ataxia due to mitochondrial mutations
- Narcolepsy
- Usher syndrome
- Chronic deafness
- Primary progressive cerebellar degeneration
- Ichthyosis, cerebellar degeneration and hepatosplenomegaly
- Paroxysmal choreoathetosis
- Gemignani syndrome
- Saldino-Mainzer dysplasia
- Autosomal recessive cerebellar ataxia, epilepsy, intellectual disability syndrome due to TUD deficiency
- Primary cerebellar degeneration
- Autosomal recessive cerebellar ataxia-epilepsy-intellectual disability syndrome due to RUBCN (RUN and cysteine rich domain containing beclin 1 interacting protein) deficiency
- Cerebellar ataxia associated with another disorder
- Ataxia with deafness and intellectual disability syndrome
- Hereditary cerebellar atrophy
- Neurodevelopmental delay, hypotonia, cerebellar ataxia, cardiac conduction defects syndrome
- ARCA2 - autosomal recessive cerebellar ataxia type 2
- Retinitis pigmentosa-deafness-ataxia syndrome
- Salih ataxia
- Cerebellar Ataxia, Marie's
- Hereditary ataxia NOS
- Autosomal recessive spinocerebellar ataxia type 15
- familial cerebellar ataxia
- Cerebellar Ataxia, Marie
- SCA47 - spinocerebellar ataxia type 47
- Hereditary cerebellar degeneration (disorder)
- CAPOS (cerebellar ataxia, areflexia, pes cavus, optic atrophy, sensorineural hearing loss) syndrome
- Chorea due to hereditary ataxia
- Cerebellar ataxia with oculomotor apraxia type 4
- Spinocerebellar ataxia autosomal recessive type 16
- X-linked progressive cerebellar ataxia
- Hereditary cerebellar degeneration
- Paroxysmal sleep
- PUM1-associated developmental disability, ataxia, seizure syndrome
- EAST (epilepsy, ataxia, sensorineural deafness, and tubulopathy) syndrome
- SESAME syndrome
- Episodic ataxia type 7
- Hereditary cerebellar disease
- Marie's cerebellar ataxia (disorder)
- Optic atrophy, ataxia, peripheral neuropathy, global developmental delay syndrome
- Cerebellar ataxia, brain abnormalities, cardiac conduction defects syndrome
- Non-progressive cerebellar ataxia
- Cerebral ataxia
- AOA2 - ataxia oculomotor apraxia type 2
- AOA4 - ataxia, oculomotor apraxia type 4
- Cerebellar ataxia
- Paroxysmal dystonia
- PADDAS syndrome
- Spinocerebellar ataxia, amyotrophy, deafness syndrome
- Marie's cerebellar ataxia
- Autosomal dominant cerebellar ataxia, deafness and narcolepsy syndrome
- Ataxia oculomotor apraxia type 1
- Narcoleptic syndrome
- Autosomal recessive ataxia due to coenzyme Q10 deficiency
- Myoclonus, cerebellar ataxia, deafness syndrome
- AOA1 (ataxia oculomotor apraxia type 1)
- Infantile cerebellar and retinal degeneration
- Usher's syndrome
- Neurodevelopmental delay, hypotonia, cerebellar atrophy, cardiac conduction defects syndrome
- Spinocerebellar ataxia with axonal neuropathy type 2
- Ataxia with tapetoretinal degeneration syndrome
- Autosomal recessive cerebellar ataxia due to STUB1 (STIP1 homology and U-box containing protein 1) deficiency
- Hereditary cerebellar syndrome
- Cerebellar ataxia with hypogonadism and choroidal dystrophy syndrome
- Cerebellar ataxia co-occurrent with ectodermal dysplasia
- Retinal pigment epithelial dystrophy
- Autosomal recessive ataxia due to ubiquinone deficiency
- Renal dysplasia, retinal pigmentary dystrophy, cerebellar ataxia, skeletal dysplasia syndrome
- Cerebellar ataxia, areflexia, pes cavus, optic atrophy, sensorineural hearing loss syndrome
- Reardon Baraitser syndrome
- Episodic ataxia
- Seizure, sensorineural deafness, ataxia, intellectual disability, electrolyte imbalance syndrome
- Hereditary choroidal atrophy
- Autosomal recessive cerebellar ataxia due to STIP1 homology and U-box containing protein 1 deficiency
- Autosomal recessive cerebellar ataxia with oculomotor apraxia type 2
- Spinocerebellar disease
- Paroxysmal dystonic choreoathetosis with episodic ataxia and spasticity
- Boucher Neuhäuser syndrome
- Posthemiplegic ataxia
- marie's ataxia
- Choreoathetosis
- Pumilio RNA binding family member 1-associated developmental disability, ataxia, seizure syndrome
- SCAR23 - spinocerebellar ataxia autosomal recessive type 23
- Early-onset progressive neurodegeneration, blindness, ataxia, spasticity syndrome
- Fragile X associated tremor ataxia syndrome
- Hereditary cerebellar ataxia NOS
- Holmes' disease
- Spinocerebellar ataxia autosomal recessive type 23
- Primary hypersomnia
- SCAR15 - autosomal recessive spinocerebellar ataxia type 15
- SCAR1 - spinocerebellar ataxia autosomal recessive 1
- Autosomal recessive cerebellar ataxia, epilepsy, intellectual disability syndrome due to RUN and cysteine rich domain containing beclin 1 interacting protein deficiency
- Hereditary choroidal dystrophy
- SESAME (seizures, sensorineural deafness, ataxia, mental retardation, electrolyte imbalance) syndrome
- Paroxysmal dyskinesia
- Gelineau's syndrome
- Hallgren's syndrome
- Retinitis pigmentosa-deafness syndrome
- Congenital cataract with ataxia and deafness syndrome
Frequently Asked Questions
What is the ICD-10 code for hereditary ataxia, unspecified?
The ICD-10-CM code for hereditary ataxia, unspecified is G11.9. The full clinical description is "Hereditary ataxia, unspecified". G11.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code G11.9 mean?
ICD-10-CM code G11.9 represents “Hereditary ataxia, unspecified”. It is classified under Chapter 6: Diseases of the Nervous System and is a billable/specific code that can be used on a claim.
Is G11.9 a billable code?
Yes, G11.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is G11.9 in?
G11.9 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What SNOMED CT codes does G11.9 map to?
G11.9 maps to 54 SNOMED CT concepts: 715366004, 725408001, 1217230002, 725394006, 722967008, and 49 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for G11.9?
G11.9 is linked to 5 UMLS Concept Unique Identifiers: C0270749, C5779602, C0270752, C2875048, C2875049. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does G11.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like hereditary ataxia, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of G11.9?
G11.9 maps to the ICD-11 code: 8A03.Z (Ataxic disorders, unspecified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.