ICD-10 Coding for Nonrheumatic Aortic Valve Stenosis(I35.0, Q23.81)
Complete ICD-10-CM coding and documentation guide for Nonrheumatic Aortic Valve Stenosis. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Nonrheumatic Aortic Valve Stenosis
I35-I35.9Primary Range
Nonrheumatic aortic valve disorders
This range includes all nonrheumatic aortic valve conditions, with I35.0 specifically for stenosis.
Congenital malformations of aortic and mitral valves
Includes congenital bicuspid aortic valve, which may be coded with nonrheumatic stenosis.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| I35.0 | Nonrheumatic aortic stenosis | Use when aortic stenosis is confirmed as nonrheumatic by clinical documentation. |
|
| Q23.81 | Congenital bicuspid aortic valve | Use when congenital bicuspid valve is documented, especially with acquired stenosis. |
|
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 nonrheumatic aortic valve stenosis
Essential facts and insights about Nonrheumatic Aortic Valve Stenosis
Primary ICD-10-CM Codes for nonrheumatic aortic valve stenosis
Decision Criteria
clinical Criteria
- Echocardiogram findings consistent with nonrheumatic stenosis.
documentation Criteria
- Explicit mention of 'nonrheumatic' or absence of rheumatic history.
Applicable To
- Calcific aortic stenosis
- Degenerative aortic stenosis
Excludes
- Rheumatic aortic stenosis (I06.0)
Clinical Validation Requirements
- Echocardiogram showing valve area ≤1.0 cm²
- Mean gradient ≥40 mmHg
- Peak velocity ≥4.0 m/s
Code-Specific Risks
- Misclassification as rheumatic without proper documentation.
Coding Notes
- Ensure documentation specifies 'nonrheumatic' to avoid defaulting to rheumatic codes.
Q23.81 - Congenital bicuspid aortic valve
Use when congenital bicuspid valve is documented, especially with acquired stenosis.
Applicable To
- Bicuspid aortic valve
Clinical Validation Requirements
- Echocardiogram confirming bicuspid valve anatomy.
Coding Notes
Document congenital nature to justify use.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Congenital bicuspid aortic valve
Q23.81Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Rheumatic aortic stenosis
I06.0Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Nonrheumatic Aortic Valve Stenosis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code I35.0.
Impact
Clinical: Misleading clinical picture., Regulatory: Potential audit issues., Financial: Incorrect reimbursement due to coding errors.
Mitigation Strategy
Educate providers on documentation standards., Use templates to ensure completeness.
Impact
Reimbursement: Incorrect DRG assignment may affect reimbursement., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data affecting patient records.
Mitigation Strategy
Query provider if documentation is unclear about rheumatic history.
Impact
Inadequate documentation of nonrheumatic etiology.
Mitigation Strategy
Implement provider education and use of standardized templates.
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 Nonrheumatic Aortic Valve Stenosis, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Nonrheumatic Aortic Valve Stenosis
Use these documentation templates to ensure complete and accurate documentation for Nonrheumatic Aortic Valve Stenosis. These templates include all required elements for proper coding and billing.
Cardiology Evaluation
Specialty: CardiologyRequired Elements
- Patient history
- Physical exam findings
- Echocardiogram results
- Diagnosis and plan
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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