1. 2021 ICD-10-CM Index
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2. 'A' Terms
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3. Index Terms Starting With 'A' (Ataxia, ataxy, ataxic)

Index Terms Starting With 'A' (Ataxia, ataxy, ataxic)

• Ataxia, ataxy, ataxic R27.0

  ICD-10-CM Diagnosis Code R27.0

  Ataxia, unspecified

  2016 2017 2018 2019 2020 2021 Billable/Specific Code

  Type 1 Excludes

  • ataxia following cerebrovascular disease (I69. with final characters -93)

  • acute R27.8
    ICD-10-CM Diagnosis Code R27.8

    Other lack of coordination

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • autosomal recessive Friedreich G11.11
    ICD-10-CM Diagnosis Code G11.11

    Friedreich ataxia

    2021 - New Code Billable/Specific Code

    Applicable To

    • Autosomal recessive Friedreich ataxia
    • Friedreich ataxia with retained reflexes
  • brain G11.9
    (hereditary)
    ICD-10-CM Diagnosis Code G11.9

    Hereditary ataxia, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Hereditary cerebellar ataxia NOS
    • Hereditary cerebellar degeneration
    • Hereditary cerebellar disease
    • Hereditary cerebellar syndrome
  • cerebellar (hereditary) G11.9
    ICD-10-CM Diagnosis Code G11.9

    Hereditary ataxia, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Hereditary cerebellar ataxia NOS
    • Hereditary cerebellar degeneration
    • Hereditary cerebellar disease
    • Hereditary cerebellar syndrome
    • alcoholic G31.2
      ICD-10-CM Diagnosis Code G31.2

      Degeneration of nervous system due to alcohol

      2016 2017 2018 2019 2020 2021 Billable/Specific Code

      Applicable To

      • Alcoholic cerebellar ataxia
      • Alcoholic cerebellar degeneration
      • Alcoholic cerebral degeneration
      • Alcoholic encephalopathy
      • Dysfunction of the autonomic nervous system due to alcohol

      Code Also

      • associated alcoholism (F10.-)
    • early-onset G11.10
      ICD-10-CM Diagnosis Code G11.10

      Early-onset cerebellar ataxia, unspecified

      2021 - New Code Billable/Specific Code
    • in
      • alcoholism G31.2
        ICD-10-CM Diagnosis Code G31.2

        Degeneration of nervous system due to alcohol

        2016 2017 2018 2019 2020 2021 Billable/Specific Code

        Applicable To

        • Alcoholic cerebellar ataxia
        • Alcoholic cerebellar degeneration
        • Alcoholic cerebral degeneration
        • Alcoholic encephalopathy
        • Dysfunction of the autonomic nervous system due to alcohol

        Code Also

        • associated alcoholism (F10.-)
      • myxedema E03.9
        ICD-10-CM Diagnosis Code E03.9

        Hypothyroidism, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code

        Applicable To

        • Myxedema NOS
      • neoplastic disease D49.9
        - see also Neoplasm
        ICD-10-CM Diagnosis Code D49.9

        Neoplasm of unspecified behavior of unspecified site

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • specified disease NEC G32.81
        ICD-10-CM Diagnosis Code G32.81

        Cerebellar ataxia in diseases classified elsewhere

        2016 2017 2018 2019 2020 2021 Billable/Specific Code Manifestation Code

        Code First

        • underlying disease, such as:
        • celiac disease (with gluten ataxia) (K90.0)
        • cerebellar ataxia (in) neoplastic disease (paraneoplastic cerebellar degeneration) (C00-D49)
        • non-celiac gluten ataxia (M35.9)

        Type 1 Excludes

        • systemic atrophy primarily affecting the central nervous system in alcoholic cerebellar ataxia (G31.2)
        • systemic atrophy primarily affecting the central nervous system in myxedema (G13.2)
    • late-onset G11.2
      (Marie's)
      ICD-10-CM Diagnosis Code G11.2

      Late-onset cerebellar ataxia

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
    • with
      • essential tremor G11.19
        ICD-10-CM Diagnosis Code G11.19

        Other early-onset cerebellar ataxia

        2021 - New Code Billable/Specific Code

        Applicable To

        • 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
      • myoclonus [Hunt's ataxia] G11.19
        ICD-10-CM Diagnosis Code G11.19

        Other early-onset cerebellar ataxia

        2021 - New Code Billable/Specific Code

        Applicable To

        • 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
      • retained tendon reflexes G11.19
        ICD-10-CM Diagnosis Code G11.19

        Other early-onset cerebellar ataxia

        2021 - New Code Billable/Specific Code

        Applicable To

        • 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
    • with defective DNA repair G11.3
      ICD-10-CM Diagnosis Code G11.3

      Cerebellar ataxia with defective DNA repair

      2016 2017 2018 2019 2020 2021 Billable/Specific Code

      Applicable To

      • Ataxia telangiectasia [Louis-Bar]

      Type 2 Excludes

      • Cockayne's syndrome (Q87.19)
      • other disorders of purine and pyrimidine metabolism (E79.-)
      • xeroderma pigmentosum (Q82.1)
  • cerebral G11.9
    (hereditary)
    ICD-10-CM Diagnosis Code G11.9

    Hereditary ataxia, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Hereditary cerebellar ataxia NOS
    • Hereditary cerebellar degeneration
    • Hereditary cerebellar disease
    • Hereditary cerebellar syndrome
  • congenital nonprogressive G11.0
    ICD-10-CM Diagnosis Code G11.0

    Congenital nonprogressive ataxia

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • family, familial - see Ataxia, hereditary
  • following
    • cerebrovascular disease I69.993
      ICD-10-CM Diagnosis Code I69.993

      Ataxia following unspecified cerebrovascular disease

      2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
      • cerebral infarction I69.393
        ICD-10-CM Diagnosis Code I69.393

        Ataxia following cerebral infarction

        2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
      • intracerebral hemorrhage I69.193
        ICD-10-CM Diagnosis Code I69.193

        Ataxia following nontraumatic intracerebral hemorrhage

        2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
      • nontraumatic intracranial hemorrhage NEC I69.293
        ICD-10-CM Diagnosis Code I69.293

        Ataxia following other nontraumatic intracranial hemorrhage

        2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
      • specified disease NEC I69.893
        ICD-10-CM Diagnosis Code I69.893

        Ataxia following other cerebrovascular disease

        2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
      • subarachnoid hemorrhage I69.093
        ICD-10-CM Diagnosis Code I69.093

        Ataxia following nontraumatic subarachnoid hemorrhage

        2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
  • Friedreich's G11.11
    (heredofamilial) (cerebellar) (spinal) (with retained reflexes)
    ICD-10-CM Diagnosis Code G11.11

    Friedreich ataxia

    2021 - New Code Billable/Specific Code

    Applicable To

    • Autosomal recessive Friedreich ataxia
    • Friedreich ataxia with retained reflexes
  • gait R26.0
    ICD-10-CM Diagnosis Code R26.0

    Ataxic gait

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Staggering gait
    • hysterical F44.4
      ICD-10-CM Diagnosis Code F44.4

      Conversion disorder with motor symptom or deficit

      2016 2017 2018 2019 2020 2021 Billable/Specific Code

      Applicable To

      • Conversion disorder with abnormal movement
      • Conversion disorder with speech symptoms
      • Conversion disorder with swallowing symptoms
      • Conversion disorder with weakness/paralysis
      • Dissociative motor disorders
      • Psychogenic aphonia
      • Psychogenic dysphonia
  • general R27.8
    ICD-10-CM Diagnosis Code R27.8

    Other lack of coordination

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • gluten M35.9
    ICD-10-CM Diagnosis Code M35.9

    Systemic involvement of connective tissue, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Autoimmune disease (systemic) NOS
    • Collagen (vascular) disease NOS
    • with celiac disease K90.0
      ICD-10-CM Diagnosis Code K90.0

      Celiac disease

      2016 2017 2018 2019 2020 2021 Billable/Specific Code

      Applicable To

      • Celiac disease with steatorrhea
      • Celiac gluten-sensitive enteropathy
      • Nontropical sprue

      Code Also

      • exocrine pancreatic insufficiency (K86.81)

      Use Additional

      • code for associated disorders including:
      • dermatitis herpetiformis (L13.0)
      • gluten ataxia (G32.81)
  • hereditary G11.9
    ICD-10-CM Diagnosis Code G11.9

    Hereditary ataxia, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Hereditary cerebellar ataxia NOS
    • Hereditary cerebellar degeneration
    • Hereditary cerebellar disease
    • Hereditary cerebellar syndrome
    • cerebellar - see Ataxia, cerebellar
    • spastic G11.4
      ICD-10-CM Diagnosis Code G11.4

      Hereditary spastic paraplegia

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • specified NEC G11.8
      ICD-10-CM Diagnosis Code G11.8

      Other hereditary ataxias

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • spinal G11.11
      (Friedreich's)
      ICD-10-CM Diagnosis Code G11.11

      Friedreich ataxia

      2021 - New Code Billable/Specific Code

      Applicable To

      • Autosomal recessive Friedreich ataxia
      • Friedreich ataxia with retained reflexes
    • with neuropathy G60.2
      ICD-10-CM Diagnosis Code G60.2

      Neuropathy in association with hereditary ataxia

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • heredofamilial - see Ataxia, hereditary
  • Hunt's G11.19
    ICD-10-CM Diagnosis Code G11.19

    Other early-onset cerebellar ataxia

    2021 - New Code Billable/Specific Code

    Applicable To

    • 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
  • hysterical F44.4
    ICD-10-CM Diagnosis Code F44.4

    Conversion disorder with motor symptom or deficit

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Conversion disorder with abnormal movement
    • Conversion disorder with speech symptoms
    • Conversion disorder with swallowing symptoms
    • Conversion disorder with weakness/paralysis
    • Dissociative motor disorders
    • Psychogenic aphonia
    • Psychogenic dysphonia
  • locomotor (progressive) (syphilitic) (partial) (spastic) A52.11
    ICD-10-CM Diagnosis Code A52.11

    Tabes dorsalis

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Locomotor ataxia (progressive)
    • Tabetic neurosyphilis
    • diabetic - see Diabetes, ataxia
  • Marie's G11.2
    (cerebellar) (heredofamilial) (late- onset)
    ICD-10-CM Diagnosis Code G11.2

    Late-onset cerebellar ataxia

    2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
  • nonorganic origin F44.4
    ICD-10-CM Diagnosis Code F44.4

    Conversion disorder with motor symptom or deficit

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Conversion disorder with abnormal movement
    • Conversion disorder with speech symptoms
    • Conversion disorder with swallowing symptoms
    • Conversion disorder with weakness/paralysis
    • Dissociative motor disorders
    • Psychogenic aphonia
    • Psychogenic dysphonia
  • nonprogressive, congenital G11.0
    ICD-10-CM Diagnosis Code G11.0

    Congenital nonprogressive ataxia

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • psychogenic F44.4
    ICD-10-CM Diagnosis Code F44.4

    Conversion disorder with motor symptom or deficit

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Conversion disorder with abnormal movement
    • Conversion disorder with speech symptoms
    • Conversion disorder with swallowing symptoms
    • Conversion disorder with weakness/paralysis
    • Dissociative motor disorders
    • Psychogenic aphonia
    • Psychogenic dysphonia
  • Roussy-Lévy G60.0
    ICD-10-CM Diagnosis Code G60.0

    Hereditary motor and sensory neuropathy

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Charcot-Marie-Tooth disease
    • Déjérine-Sottas disease
    • Hereditary motor and sensory neuropathy, types I-IV
    • Hypertrophic neuropathy of infancy
    • Peroneal muscular atrophy (axonal type) (hypertrophic type)
    • Roussy-Levy syndrome
  • Sanger-Brown's G11.2
    (hereditary)
    ICD-10-CM Diagnosis Code G11.2

    Late-onset cerebellar ataxia

    2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
  • spastic hereditary G11.4
    ICD-10-CM Diagnosis Code G11.4

    Hereditary spastic paraplegia

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • spinal
    • hereditary G11.11
      (Friedreich's)
      ICD-10-CM Diagnosis Code G11.11

      Friedreich ataxia

      2021 - New Code Billable/Specific Code

      Applicable To

      • Autosomal recessive Friedreich ataxia
      • Friedreich ataxia with retained reflexes
    • progressive A52.11
      (syphilitic)
      ICD-10-CM Diagnosis Code A52.11

      Tabes dorsalis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code

      Applicable To

      • Locomotor ataxia (progressive)
      • Tabetic neurosyphilis
  • spinocerebellar, X-linked recessive G11.19
    ICD-10-CM Diagnosis Code G11.19

    Other early-onset cerebellar ataxia

    2021 - New Code Billable/Specific Code

    Applicable To

    • 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
  • telangiectasia G11.3
    (Louis-Bar)
    ICD-10-CM Diagnosis Code G11.3

    Cerebellar ataxia with defective DNA repair

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Ataxia telangiectasia [Louis-Bar]

    Type 2 Excludes

    • Cockayne's syndrome (Q87.19)
    • other disorders of purine and pyrimidine metabolism (E79.-)
    • xeroderma pigmentosum (Q82.1)