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v1.0.0
ICD-10 Guide
ICD-10 CodesG32.89

G32.89

Billable

Other specified degenerative disorders of nervous system in diseases classified elsewhere

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

Code Description

ICD-10 G32.89 is a billable code used to indicate a diagnosis of other specified degenerative disorders of nervous system in diseases classified elsewhere.

Key Diagnostic Point:

G32.89 encompasses various degenerative disorders of the nervous system that are classified under other diseases. This includes conditions such as Alzheimer's disease, which is characterized by progressive cognitive decline, memory loss, and changes in behavior. Other degenerative diseases may include frontotemporal dementia, Lewy body dementia, and other atypical presentations of neurodegeneration. These disorders often lead to significant impairment in daily functioning and require comprehensive assessment and management strategies. Cognitive decline assessment typically involves a combination of clinical evaluation, neuropsychological testing, and imaging studies to determine the extent of neurodegeneration and to differentiate between various types of dementia. Accurate coding is essential for appropriate treatment planning and resource allocation in healthcare settings.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying conditions that can lead to similar symptoms.
  • Need for comprehensive documentation to support the diagnosis.
  • Differentiation from other neurodegenerative diseases.
  • Potential for overlapping symptoms with psychiatric disorders.

Audit Risk Factors

  • Inadequate documentation of cognitive assessments.
  • Failure to specify the underlying disease causing degeneration.
  • Misclassification of symptoms as primary rather than secondary.
  • Lack of supporting evidence for the diagnosis.

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed neurological examination findings, cognitive assessment results, and imaging studies.

Common Clinical Scenarios

Patients presenting with memory loss, confusion, and behavioral changes.

Billing Considerations

Ensure clarity in documenting the type of cognitive decline and any comorbid conditions.

Psychiatry

Documentation Requirements

Mental status examinations, history of present illness, and psychosocial assessments.

Common Clinical Scenarios

Patients with mood changes, anxiety, or psychosis related to neurodegenerative conditions.

Billing Considerations

Differentiate between primary psychiatric disorders and secondary cognitive decline.

Coding Guidelines

Inclusion Criteria

Use G32.89 When
  • Follow official ICD
  • 10 coding guidelines, ensuring that the diagnosis is supported by clinical documentation
  • 89 should be used when the degenerative disorder is specified but does not fit into other defined categories

Exclusion Criteria

Do NOT use G32.89 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

96136CPT Code

Neuropsychological testing

Clinical Scenario

Used for cognitive assessments in patients with suspected neurodegenerative disorders.

Documentation Requirements

Document the rationale for testing and results.

Specialty Considerations

Neurologists and psychologists should collaborate on documentation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of neurodegenerative disorders, improving the ability to track and manage these conditions. G32.89 provides a means to capture cases that do not fit neatly into other categories, enhancing clinical understanding and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of neurodegenerative disorders, improving the ability to track and manage these conditions. G32.89 provides a means to capture cases that do not fit neatly into other categories, enhancing clinical understanding and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of neurodegenerative disorders, improving the ability to track and manage these conditions. G32.89 provides a means to capture cases that do not fit neatly into other categories, enhancing clinical understanding and resource allocation.

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

When should I use G32.89 instead of a more specific code?

Use G32.89 when the degenerative disorder is specified but does not fit into other defined categories, or when the specific type of degeneration is not documented.