ICD-10 Coding for Rett Syndrome(F84.2)
Complete ICD-10-CM coding and documentation guide for Rett Syndrome. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Rett Syndrome
Key Information: ICD-10 code for Rett syndrome
Essential facts and insights about Rett Syndrome
Primary ICD-10-CM Code for rett syndrome
Decision Criteria
clinical Criteria
- Presence of MECP2 mutation and clinical symptoms of Rett syndrome
documentation Criteria
- Detailed regression timeline and stereotypic movements
Applicable To
- Rett's disorder
Excludes
- Autistic disorder (F84.0)
Clinical Validation Requirements
- Regression after 6-18 months of normal development
- Stereotypic hand movements
- Loss of acquired purposeful hand skills
- MECP2 mutation confirmation
Code-Specific Risks
- Incorrect use without genetic confirmation
- Failure to document specific regression timeline
Coding Notes
- Ensure all diagnostic criteria are documented and genetic testing results are included.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Other specified degenerative diseases of nervous system
G31.8Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Autistic disorder
F84.0Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Rett Syndrome to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code F84.2.
Impact
Clinical: Misdiagnosis risk due to lack of detailed history., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials due to insufficient documentation.
Mitigation Strategy
Ensure detailed patient history is recorded., Verify genetic test results are included.
Impact
Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.
Mitigation Strategy
Code R62.50 until molecular testing confirms Rett syndrome.
Impact
Lack of genetic test results in patient records.
Mitigation Strategy
Implement checklist for genetic testing documentation.
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 Rett Syndrome, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Rett Syndrome
Use these documentation templates to ensure complete and accurate documentation for Rett Syndrome. These templates include all required elements for proper coding and billing.
Neurology Progress Note
Specialty: NeurologyRequired Elements
- History of regression
- Current stereotypies
- Genetic confirmation
- Supportive findings
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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