ICD-10 Coding for Disorder of Autonomic Nervous System(G90.0, G90.3, G90.8)
Complete ICD-10-CM coding and documentation guide for Disorder of Autonomic Nervous System. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Disorder of Autonomic Nervous System
G90Primary Range
Disorders of autonomic nervous system
This range includes all primary codes for autonomic nervous system disorders, covering idiopathic, multi-system degeneration, and other specified conditions.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| G90.0 | Idiopathic peripheral autonomic neuropathy | Use when autonomic dysfunction is unexplained and systemic diseases are ruled out. |
|
| G90.3 | Multi-system degeneration of autonomic nervous system | Use when autonomic failure is part of a multi-system degeneration, such as in Parkinson's. |
|
| G90.8 | Other disorders of autonomic nervous system | Use for autonomic disorders secondary to another condition, such as diabetes. |
|
Clinical Decision Support
Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.
Key Information: ICD-10 code for disorder of autonomic nervous system
Essential facts and insights about Disorder of Autonomic Nervous System
Primary ICD-10-CM Codes for disorder of autonomic nervous system
Decision Criteria
clinical Criteria
- Negative systemic disease tests
Applicable To
- Chronic orthostatic intolerance without identifiable etiology
Excludes
- Diabetic autonomic neuropathy (E11.43)
Clinical Validation Requirements
- Negative HbA1c (<5.7%)
- Normal paraneoplastic panel
- Abnormal QSART
Code-Specific Risks
- Misclassification if diabetes is not ruled out
Coding Notes
- Ensure diabetes and other systemic conditions are excluded before using this code.
G90.3 - Multi-system degeneration of autonomic nervous system
Use when autonomic failure is part of a multi-system degeneration, such as in Parkinson's.
Applicable To
- Shy-Drager syndrome
Excludes
- Parkinson's disease (G20)
Clinical Validation Requirements
- Confirmed by α-synuclein biopsy
Coding Notes
Always sequence neurodegenerative disorder codes before autonomic codes.
G90.8 - Other disorders of autonomic nervous system
Use for autonomic disorders secondary to another condition, such as diabetes.
Applicable To
- Diabetic autonomic neuropathy
Excludes
- Idiopathic peripheral autonomic neuropathy (G90.0)
Clinical Validation Requirements
- Underlying condition documented
- Specific ANS manifestation
Coding Notes
Ensure underlying condition is documented and coded first.
Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Type 2 diabetes mellitus with diabetic autonomic (poly)neuropathy
E11.43Progressive supranuclear ophthalmoplegia [Steele-Richardson-Olszewski]
G23.1Autonomic neuropathy in diseases classified elsewhere
G99.0Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Disorder of Autonomic Nervous System to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code G90.0.
Impact
Clinical: May lead to misdiagnosis or inappropriate treatment., Regulatory: Non-compliance with coding standards., Financial: Potential for denied claims or reduced reimbursement.
Mitigation Strategy
Ensure detailed documentation of symptoms and test results.
Impact
Reimbursement: May lead to lower reimbursement rates., Compliance: Non-compliance with coding guidelines., Data Quality: Decreases specificity and accuracy of health records.
Mitigation Strategy
Use specific codes like G90.0 or G90.8 based on documentation.
Impact
Failure to sequence underlying conditions before autonomic disorders.
Mitigation Strategy
Educate coding staff on proper sequencing rules.
Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.
Frequently Asked Questions
Common questions about ICD-10 coding for Disorder of Autonomic Nervous System, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Disorder of Autonomic Nervous System
Use these documentation templates to ensure complete and accurate documentation for Disorder of Autonomic Nervous System. These templates include all required elements for proper coding and billing.
Orthostatic Hypotension
Specialty: NeurologyRequired Elements
- Orthostatic vitals
- Sudomotor testing results
- Cardiovagal testing results
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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