ICD-10 Coding for Mild Cognitive Impairment due to Dementia(G31.84, F02.80)
Complete ICD-10-CM coding and documentation guide for Mild Cognitive Impairment due to Dementia. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Mild Cognitive Impairment due to Dementia
G30-G31Primary Range
Diseases of the nervous system, specifically Alzheimer's and other degenerative diseases
This range includes codes for Alzheimer's disease and mild cognitive impairment, which are relevant for coding MCI due to dementia.
Mental and behavioral disorders, specifically dementia
This range includes codes for dementia, which are used in conjunction with MCI codes when dementia is present.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| G31.84 | Mild cognitive impairment, so stated | Use when cognitive decline is present without significant functional impairment. |
|
| F02.80 | Dementia in other diseases classified elsewhere without behavioral disturbance | Use when dementia is confirmed with functional impairment. |
|
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 mild cognitive impairment due to dementia
Essential facts and insights about Mild Cognitive Impairment due to Dementia
Primary ICD-10-CM Codes for mild cognitive impairment due to dementia
Decision Criteria
clinical Criteria
- Cognitive decline without functional impairment
coding Criteria
- Use G31.84 when MCI is documented without dementia
Applicable To
- Age-related cognitive decline
Excludes
- Dementia (F01-F03)
Clinical Validation Requirements
- Standardized test scores (MoCA 18–25, MMSE 20–26)
- No functional impairment per FAQ/IADL
Code-Specific Risks
- Risk of incorrect sequencing if dementia is also present.
Coding Notes
- Ensure documentation supports the absence of functional impairment.
F02.80 - Dementia in other diseases classified elsewhere without behavioral disturbance
Use when dementia is confirmed with functional impairment.
Applicable To
- Dementia due to Alzheimer's disease
Excludes
- Mild cognitive impairment (G31.84)
Clinical Validation Requirements
- Etiology specified (e.g., 'Due to Alzheimer’s')
- CDR = 0.5–1.0
- FAQ ≥9
Coding Notes
Ensure underlying condition is documented and coded first.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Age-related cognitive decline
R41.81Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Mild Cognitive Impairment due to Dementia to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code G31.84.
Impact
Clinical: Leads to inaccurate clinical records., Regulatory: Non-compliance with coding standards., Financial: Potential for claim denials.
Mitigation Strategy
Always document and code the specific etiology.
Impact
Reimbursement: Incorrect sequencing can lead to claim denials., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.
Mitigation Strategy
Always code the underlying condition first, followed by dementia or MCI.
Impact
Incomplete documentation of cognitive assessments.
Mitigation Strategy
Ensure all cognitive evaluations are documented with specific scores.
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 Mild Cognitive Impairment due to Dementia, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Mild Cognitive Impairment due to Dementia
Use these documentation templates to ensure complete and accurate documentation for Mild Cognitive Impairment due to Dementia. These templates include all required elements for proper coding and billing.
Neurology Progress Note
Specialty: NeurologyRequired Elements
- Cognitive test scores
- Functional assessment
- Etiology documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
Need help with ICD-10 coding for Mild Cognitive Impairment due to Dementia? Ask your questions below.