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ICD-10 Guide
ICD-10 CodesG31.2

G31.2

Billable

Degeneration of nervous system due to alcohol

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 G31.2 is a billable code used to indicate a diagnosis of degeneration of nervous system due to alcohol.

Key Diagnostic Point:

Degeneration of the nervous system due to alcohol is a condition characterized by the progressive deterioration of brain function as a result of chronic alcohol consumption. This degeneration can manifest as cognitive decline, memory loss, and changes in behavior, often resembling other neurodegenerative diseases such as Alzheimer's disease. The pathophysiology involves the toxic effects of alcohol on neuronal cells, leading to cell death and impaired synaptic function. Patients may present with symptoms similar to those of dementia, including difficulties with reasoning, problem-solving, and memory. The diagnosis requires a thorough clinical assessment, including a detailed history of alcohol use, neurological examination, and cognitive testing. It is crucial to differentiate this condition from other forms of dementia, as the management and prognosis may differ significantly. Early intervention and cessation of alcohol use can potentially halt or slow the progression of symptoms, making accurate diagnosis and coding essential for appropriate treatment planning.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between alcohol-related cognitive decline and other forms of dementia.
  • Need for comprehensive documentation of alcohol use history.
  • Potential overlap with other ICD-10 codes related to neurodegeneration.
  • Variability in presentation and symptoms among patients.

Audit Risk Factors

  • Inadequate documentation of alcohol use history.
  • Failure to differentiate from other neurodegenerative diseases.
  • Insufficient clinical evidence supporting the diagnosis.
  • Misuse of related codes leading to incorrect billing.

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed neurological assessments, cognitive testing results, and comprehensive history of alcohol use.

Common Clinical Scenarios

Patients presenting with memory loss, confusion, and behavioral changes after prolonged alcohol use.

Billing Considerations

Consideration of co-occurring mental health disorders and the need for a multidisciplinary approach.

Addiction Medicine

Documentation Requirements

Thorough documentation of substance use history, treatment plans, and progress notes.

Common Clinical Scenarios

Patients undergoing detoxification who exhibit cognitive decline.

Billing Considerations

Integration of addiction treatment with neurological care for optimal patient outcomes.

Coding Guidelines

Inclusion Criteria

Use G31.2 When
  • According to ICD
  • 10 coding guidelines, G31
  • 2 should be used when there is clear documentation of cognitive decline directly attributable to chronic alcohol use
  • It is essential to ensure that other potential causes of neurodegeneration are ruled out

Exclusion Criteria

Do NOT use G31.2 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

96116CPT Code

Neuropsychological testing

Clinical Scenario

Used to assess cognitive function in patients suspected of having G31.2.

Documentation Requirements

Results of cognitive assessments and history of alcohol use.

Specialty Considerations

Neurologists and psychologists should collaborate for comprehensive evaluation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like G31.2, improving the accuracy of diagnoses related to alcohol-induced neurodegeneration and facilitating better treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like G31.2, improving the accuracy of diagnoses related to alcohol-induced neurodegeneration and facilitating better treatment planning.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the primary cause of degeneration of the nervous system due to alcohol?

The primary cause is chronic alcohol consumption, which leads to neurotoxicity, neuronal death, and cognitive decline.

How can G31.2 be differentiated from Alzheimer's disease?

G31.2 is specifically linked to alcohol use, while Alzheimer's disease is a distinct neurodegenerative disorder with different pathophysiological mechanisms.