ICD-10 Coding for Lewy Body Dementia(G31.83, F02.80, F02.81)
Complete ICD-10-CM coding and documentation guide for Lewy Body Dementia. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Lewy Body Dementia
G31.83Primary Range
Lewy Body Disease
Primary code for diagnosing Lewy Body Dementia, indicating the presence of Lewy bodies in the brain.
Dementia in other diseases classified elsewhere
Used to specify the presence of dementia due to Lewy Body Disease, with or without behavioral disturbances.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| G31.83 | Lewy Body Disease | Use when diagnosing Lewy Body Dementia with confirmed clinical features. |
|
| F02.80 | Dementia in other diseases classified elsewhere without behavioral disturbance | Use when dementia is present without behavioral disturbances. |
|
| F02.81 | Dementia in other diseases classified elsewhere with behavioral disturbance | Use when dementia is present with behavioral disturbances. |
|
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 Lewy Body Dementia
Essential facts and insights about Lewy Body Dementia
Primary ICD-10-CM Codes for lewy body dementia
Decision Criteria
clinical Criteria
- Presence of core clinical features such as visual hallucinations and cognitive fluctuations.
coding Criteria
- Sequence G31.83 before F02.80/F02.81.
documentation Criteria
- Document specific symptoms and test results supporting Lewy Body Dementia.
Applicable To
- Dementia with Lewy bodies
Excludes
- Parkinson's disease with dementia (G20)
Clinical Validation Requirements
- Fluctuating cognition with pronounced variations in attention and alertness
- Recurrent visual hallucinations
- REM sleep behavior disorder
- DaTscan showing reduced dopamine transporter uptake
Code-Specific Risks
- Incorrect sequencing with F02.80/F02.81
- Confusion with Parkinson's disease coding
F02.80 - Dementia in other diseases classified elsewhere without behavioral disturbance
Use when dementia is present without behavioral disturbances.
Applicable To
- Dementia without behavioral disturbance
Excludes
- Dementia with behavioral disturbance (F02.81)
Clinical Validation Requirements
- Documented cognitive decline without behavioral disturbances
Coding Notes
Ensure no behavioral disturbances are documented.
F02.81 - Dementia in other diseases classified elsewhere with behavioral disturbance
Use when dementia is present with behavioral disturbances.
Applicable To
- Dementia with behavioral disturbance
Excludes
- Dementia without behavioral disturbance (F02.80)
Clinical Validation Requirements
- Documented cognitive decline with behavioral disturbances such as aggression or hallucinations
Coding Notes
Ensure behavioral disturbances are documented.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Lewy Body Dementia to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code G31.83.
Impact
Clinical: Inaccurate representation of patient's condition., Regulatory: Potential for audit and compliance issues., Financial: Risk of claim denials due to lack of specificity.
Mitigation Strategy
Always document the underlying cause of dementia., Use specific codes like G31.83 for Lewy Body Dementia.
Impact
Reimbursement: Incorrect coding can lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.
Mitigation Strategy
Verify the timeline of symptom onset; use G31.83 if cognitive symptoms precede or coincide with motor symptoms.
Impact
Incorrect sequencing of G31.83 and F02.81 can lead to audit flags.
Mitigation Strategy
Educate coding staff on proper sequencing rules and documentation requirements.
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 Lewy Body Dementia, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Lewy Body Dementia
Use these documentation templates to ensure complete and accurate documentation for Lewy Body Dementia. These templates include all required elements for proper coding and billing.
Initial Diagnosis of Lewy Body Dementia
Specialty: NeurologyRequired Elements
- Cognitive assessment results
- Description of visual hallucinations
- Motor symptoms evaluation
- Sleep disorder history
- Diagnostic imaging results
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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