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ICD-10-CM Codes
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2023 ICD-10-CM Diagnosis Code G31.2
2023 ICD-10-CM Diagnosis Code G31.2
Degeneration of nervous system due to alcohol
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- G31.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM G31.2 became effective on October 1, 2022.
- This is the American ICD-10-CM version of G31.2 - other international versions of ICD-10 G31.2 may differ.
Applicable To- Alcoholic cerebellar ataxia
- Alcoholic cerebellar degeneration
- Alcoholic cerebral degeneration
- Alcoholic encephalopathy
- Dysfunction of the autonomic nervous system due to alcohol
Code AlsoCode Also Help
A code also note instructs that 2 codes may be required to fully describe a condition but the sequencing of the two codes is discretionary, depending on the severity of the conditions and the reason for the encounter.
The following code(s) above
G31.2 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
G31.2:
- Alcohol induced encephalopathy
- Alcoholic encephalopathy
- Cerebral degeneration due to alcoholism
- Degeneration of the brain due to alcoholism
- Degenerative brain disorder due to alcohol
ICD-10-CM G31.2 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 056 Degenerative nervous system disorders with mcc
- 057 Degenerative nervous system disorders without mcc
Convert G31.2 to ICD-9-CM
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
Code annotations containing back-references to G31.2:
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Type 1 Excludes: G32.81, G90, G93.4
ICD-10-CM Diagnosis Code G32.81
Cerebellar ataxia in diseases classified elsewhere
2016 2017 2018 2019 2020 2021 2022 2023 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)
ICD-10-CM Diagnosis Code G90
Disorders of autonomic nervous system
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 1 Excludes- dysfunction of the autonomic nervous system due to alcohol (G31.2)
ICD-10-CM Diagnosis Code G93.4
Other and unspecified encephalopathy
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 1 Excludes- alcoholic encephalopathy (G31.2)
- encephalopathy in diseases classified elsewhere (G94)
- hypertensive encephalopathy (I67.4)
Type 2 Excludes- toxic (metabolic) encephalopathy (G92.8)
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Type 2 Excludes: G04
ICD-10-CM Diagnosis Code G04
Encephalitis, myelitis and encephalomyelitis
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Includes- acute ascending myelitis
- meningoencephalitis
- meningomyelitis
Type 2 Excludes- acute transverse myelitis (G37.3-)
- alcoholic encephalopathy (G31.2)
- multiple sclerosis (G35)
- myalgic encephalomyelitis (G93.32)
- subacute necrotizing myelitis (G37.4)
- toxic encephalitis (G92.8)
- toxic encephalopathy (G92.8)
- Ataxia, ataxy, ataxic R27.0
ICD-10-CM Diagnosis Code R27.0
Ataxia, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Type 1 Excludes- ataxia following cerebrovascular disease (I69. with final characters -93)
- cerebellar (hereditary) G11.9
ICD-10-CM Diagnosis Code G11.9
Hereditary ataxia, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
Applicable To- Hereditary cerebellar ataxia NOS
- Hereditary cerebellar degeneration
- Hereditary cerebellar disease
- Hereditary cerebellar syndrome
- Degeneration, degenerative
- brain (cortical) (progressive) G31.9
ICD-10-CM Diagnosis Code G31.9
Degenerative disease of nervous system, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- cerebellar NOS G31.9
ICD-10-CM Diagnosis Code G31.9
Degenerative disease of nervous system, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- cortical (cerebellar) (parenchymatous) G31.89
ICD-10-CM Diagnosis Code G31.89
Other specified degenerative diseases of nervous system
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- nervous system G31.9
ICD-10-CM Diagnosis Code G31.9
Degenerative disease of nervous system, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- Dysfunction
- Encephalopathy (acute) G93.40
ICD-10-CM Diagnosis Code G93.40
Encephalopathy, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
ICD-10-CM Codes Adjacent To G31.2
G30.0 Alzheimer's disease with early onset
G30.1 Alzheimer's disease with late onset
G30.8 Other Alzheimer's disease
G30.9 Alzheimer's disease, unspecified
G31 Other degenerative diseases of nervous system, not elsewhere classified
G31.0 Frontotemporal dementia
G31.09 Other frontotemporal neurocognitive disorder
G31.1 Senile degeneration of brain, not elsewhere classified
G31.2
Degeneration of nervous system due to alcohol
G31.8 Other specified degenerative diseases of nervous system
G31.83 Neurocognitive disorder with Lewy bodies
G31.84 Mild cognitive impairment of uncertain or unknown etiology
G31.85 Corticobasal degeneration
G31.89 Other specified degenerative diseases of nervous system
G31.9 Degenerative disease of nervous system, unspecified
G32 Other degenerative disorders of nervous system in diseases classified elsewhere
G32.0 Subacute combined degeneration of spinal cord in diseases classified elsewhere
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
