Extrapyramidal and movement disorders
ICD-10 Codes (50)
G21G21.0G21.1G21.11G21.19G21.2G21.3G21.4G21.8G21.9G23G23.0G23.1G23.2G23.3G23.8G23.9G24G24.0G24.01G24.02G24.09G24.1G24.2G24.3G24.4G24.5G24.8G24.9G25G25.0G25.1G25.2G25.3G25.4G25.5G25.6G25.61G25.69G25.7G25.70G25.71G25.79G25.8G25.81G25.82G25.83G25.89G25.9G26Updates & 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 G20-G26 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 G20-G26 represents Extrapyramidal and Movement Disorders. This category includes various conditions related to the nervous system that affect movement, such as Parkinson's disease, Huntington's disease, and other specified degenerative diseases of the basal ganglia. These codes are used to document diagnoses related to movement disorders and are critical for appropriate patient management, research, and billing purposes.
Key Usage Points:
- •Always code to the highest level of specificity.
- •Use additional codes to identify any associated conditions or complications.
- •Use combination codes for conditions with both an underlying etiology and multiple body system manifestations.
- •Certain conditions have both an underlying etiology and one or more body system manifestations due to the underlying etiology.
- •For diseases classified elsewhere, codes are for use as supplementary or secondary codes to identify the manifestation(s) of other diseases.
Coding Guidelines
When to Use:
- ✓When a patient is diagnosed with Parkinson's disease (G20).
- ✓When a patient is diagnosed with Huntington's disease (G10).
- ✓When a patient is diagnosed with other specified degenerative diseases of the basal ganglia (G23).
- ✓When a patient is diagnosed with other extrapyramidal and movement disorders (G25).
- ✓When a patient is diagnosed with other degenerative diseases of the nervous system, not elsewhere classified (G31).
When NOT to Use:
- ✗Do not use these codes for conditions classified elsewhere.
- ✗Do not use these codes for symptoms, signs, and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).
- ✗Do not use these codes for diseases of the eye and adnexa (H00-H59).
- ✗Do not use these codes for diseases of the ear and mastoid process (H60-H95).
- ✗Do not use these codes for diseases of the circulatory system (I00-I99).
Code Exclusions
Always verify exclusions in the current version of the ICD-10-CM as they may change over time.
Documentation Requirements
Documentation for codes in the G20-G26 range should be comprehensive, including the specific diagnosis, any associated conditions or complications, and the patient's course of treatment. Detailed medical records are essential for accurate coding.
Clinical Information:
- •Specific diagnosis
- •Associated conditions or complications
- •Course of treatment
- •Progress notes
- •Lab and diagnostic test results
Supporting Evidence:
- •Physician's notes
- •Lab and diagnostic test results
- •Medication records
- •Patient's medical history
Good Documentation Example:
Patient diagnosed with Parkinson's disease with a history of tremors and rigidity. On-going treatment with Levodopa.
Poor Documentation Example:
Patient diagnosed with movement disorder.
Common Documentation Errors:
- âš Not coding to the highest level of specificity
- âš Not documenting associated conditions or complications
- âš Not including progress notes or treatment course
Range Statistics
Coding Complexity
Coding for extrapyramidal and movement disorders is of medium complexity due to the need for a deep understanding of the conditions, their etiology and manifestations, and the need to code to the highest level of specificity. Coders must also stay current with changes in the ICD-10-CM.
Key Factors:
- â–¸Understanding the specific condition
- â–¸Identifying associated conditions or complications
- â–¸Coding to the highest level of specificity
- â–¸Understanding the etiology and manifestations of the condition
- â–¸Keeping up-to-date with changes in the ICD-10-CM
Specialty Focus
These codes are primarily used by neurologists, geriatricians, and primary care physicians. They are also relevant for researchers studying movement disorders.
Primary Specialties:
Clinical Scenarios:
- • A 70-year-old patient with a diagnosis of Parkinson's disease experiencing increased tremors.
- • A 55-year-old patient newly diagnosed with Huntington's disease.
- • A patient with a degenerative disease of the basal ganglia presenting with dystonia.
- • A patient with an unspecified extrapyramidal disorder and abnormal movements.
- • A patient with a history of Parkinson's disease presenting with complications such as dementia.
Resources & References
Resources for coding extrapyramidal and movement disorders include the official ICD-10-CM guidelines, clinical reference materials, and educational resources for coders.
Official Guidelines:
- ICD-10-CM Official Guidelines for Coding and Reporting
- National Center for Health Statistics (NCHS)
- Centers for Medicare & Medicaid Services (CMS)
Clinical References:
- American Academy of Neurology (AAN)
- Parkinson's Foundation
- Huntington's Disease Society of America (HDSA)
Educational Materials:
- American Health Information Management Association (AHIMA)
- American Academy of Professional Coders (AAPC)
- Medical Coding Training Books and Manuals
Frequently Asked Questions
What is the code for Parkinson's disease?
The code for Parkinson's disease is G20.
How do I code for other specified degenerative diseases of the basal ganglia?
The code for other specified degenerative diseases of the basal ganglia is G23.8. Remember to document the specific condition.