Other degenerative diseases of the nervous system
ICD-10 Codes (21)
G31G31.0G31.01G31.09G31.1G31.2G31.8G31.80G31.81G31.82G31.83G31.84G31.85G31.86G31.89G31.9G32G32.0G32.8G32.81G32.89Updates & Changes
FY 2026 Updates
Deleted Codes
No codes deleted in this range for FY 2026
No significant changes for FY 2026
This range maintains stability with current coding practices
Historical Changes
- •FY 2025: Routine maintenance updates with minor terminology clarifications
- •FY 2024: Enhanced specificity requirements for certain code ranges
- •FY 2023: Updated documentation guidelines for improved clarity
Upcoming Changes
- •Proposed updates pending review by Coordination and Maintenance Committee
- •Under consideration: Enhanced digital health integration codes
Implementation Guidance
- •Review all FY 2026 updates for G30-G32 codes before implementation
- •Always verify the most current codes in the ICD-10-CM manual
- •Ensure clinical documentation supports the selected diagnosis codes
- +3 more guidance items...
Range Overview
The ICD-10 code range G30-G32 pertains to other degenerative diseases of the nervous system. It encompasses conditions such as Alzheimer's disease, other degenerative diseases of the nervous system, not elsewhere classified, and degenerative diseases of the nervous system, unspecified. These codes are used to document diagnoses related to degenerative neurological conditions, which are characterized by the progressive loss of structure or function of neurons, including death of neurons.
Key Usage Points:
- •G30 codes are specifically used for different forms of Alzheimer's disease.
- •G31 codes cover other degenerative diseases of the nervous system not classified elsewhere.
- •G32 is used for other degenerative disorders of nervous system in diseases classified elsewhere.
- •Always code to the highest level of specificity.
- •Remember to code for all documented conditions that coexist at the time of the encounter.
Coding Guidelines
When to Use:
- ✓When a patient is diagnosed with Alzheimer's disease.
- ✓When a patient has a degenerative neurological condition not classified elsewhere.
- ✓When a patient has a degenerative disorder of the nervous system due to another disease.
When NOT to Use:
- ✗When the patient's condition is not degenerative.
- ✗When the patient's condition is not related to the nervous system.
- ✗When the patient's condition is better described by another code.
- ✗When the patient's condition is an exclusion to these codes.
Code Exclusions
Always verify exclusions with the latest version of the ICD-10-CM.
Documentation Requirements
Proper documentation for G30-G32 codes should include the specific diagnosis, any causal conditions, and the severity or stage of the disease. It should also include any associated manifestations or complications.
Clinical Information:
- •Specific diagnosis
- •Causal conditions, if any
- •Severity or stage of the disease
- •Associated manifestations or complications
Supporting Evidence:
- •Clinical notes
- •Lab results
- •Imaging reports
- •Referral letters
Good Documentation Example:
Patient diagnosed with early-onset Alzheimer's disease, moderate stage, with documented cognitive decline.
Poor Documentation Example:
Patient has memory issues.
Common Documentation Errors:
- ⚠Not documenting the specific type of degenerative disease
- ⚠Not documenting the severity or stage of the disease
- ⚠Not documenting associated manifestations or complications
Range Statistics
Coding Complexity
Coding for these conditions can be complex due to the need to accurately capture the specific type of degenerative disease, any causal conditions, the severity or stage of the disease, and any associated manifestations or complications.
Key Factors:
- ▸Understanding the specific type of degenerative disease
- ▸Determining the causal condition, if any
- ▸Assessing the severity or stage of the disease
- ▸Identifying associated manifestations or complications
Specialty Focus
These codes are most commonly used by neurologists, geriatricians, and psychiatrists.
Primary Specialties:
Clinical Scenarios:
- • A patient with Alzheimer's disease presenting with worsening cognitive decline.
- • A patient with a degenerative neurological condition due to HIV disease.
- • A patient with a history of alcohol abuse presenting with signs of alcoholic cerebellar degeneration.
Resources & References
Resources for these codes include the ICD-10-CM Official Guidelines for Coding and Reporting, the American Academy of Neurology, and the Alzheimer's Association.
Official Guidelines:
- ICD-10-CM Official Guidelines for Coding and Reporting
- American Academy of Neurology
- Alzheimer's Association
Clinical References:
- Clinical notes
- Lab results
- Imaging reports
Educational Materials:
- ICD-10-CM Coding Handbook
- Medical Coding Training: ICD-10-CM
Frequently Asked Questions
Can G30-G32 codes be used for conditions due to trauma or injury?
No, these codes are specifically for degenerative diseases of the nervous system, which are characterized by the progressive loss of structure or function of neurons, not due to trauma or injury.