ICD-10 Coding for Immunoglobulin A Nephropathy(N02.B1, N02.B5)
Complete ICD-10-CM coding and documentation guide for Immunoglobulin A Nephropathy. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Immunoglobulin A Nephropathy
N02.B1-N02.B6Primary Range
Specific IgAN subtypes with histologic detail
These codes represent the primary classification for IgA nephropathy with specific histologic findings.
Chronic Kidney Disease (CKD) stages
These codes are used to specify the stage of CKD when present with IgA nephropathy.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| N02.B1 | IgA nephropathy with minimal change lesion | Use when biopsy confirms minimal change lesion with IgA deposits. |
|
| N02.B5 | Diffuse mesangial proliferative glomerulonephritis with IgA dominance | Use when biopsy confirms diffuse mesangial proliferative pattern with IgA dominance. |
|
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 IgA nephropathy
Essential facts and insights about Immunoglobulin A Nephropathy
Primary ICD-10-CM Codes for immunoglobulin a nephropathy
Decision Criteria
clinical Criteria
- Biopsy confirms minimal change lesion with IgA deposits.
Applicable To
- Minimal change disease with IgA deposits
Excludes
- Secondary IgA nephropathy due to systemic disease
Clinical Validation Requirements
- Biopsy showing minimal change lesion with IgA deposits
Code-Specific Risks
- Ensure biopsy confirmation to avoid misclassification.
Coding Notes
- Ensure documentation includes biopsy results confirming IgA deposits.
N02.B5 - Diffuse mesangial proliferative glomerulonephritis with IgA dominance
Use when biopsy confirms diffuse mesangial proliferative pattern with IgA dominance.
Applicable To
- Diffuse mesangial proliferative pattern with IgA deposits
Excludes
- Lupus nephritis with IgA deposits
Clinical Validation Requirements
- Biopsy showing diffuse mesangial proliferation with IgA dominance
Coding Notes
Documentation must include specific histologic findings.
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 Immunoglobulin A Nephropathy to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code N02.B1.
Impact
Clinical: Misdiagnosis risk, Regulatory: Non-compliance with coding standards, Financial: Potential claim denials
Mitigation Strategy
Verify biopsy results before coding, Educate staff on documentation requirements
Impact
Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with updated coding standards., Data Quality: Inaccurate data reporting and analysis.
Mitigation Strategy
Use new codes N02.B1-N02.B6 as of 2024.
Impact
Using codes like N02.8 instead of updated N02.Bx codes.
Mitigation Strategy
Regularly update coding references and train staff.
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 Immunoglobulin A Nephropathy, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Immunoglobulin A Nephropathy
Use these documentation templates to ensure complete and accurate documentation for Immunoglobulin A Nephropathy. These templates include all required elements for proper coding and billing.
Biopsy-confirmed IgA nephropathy with CKD
Specialty: NephrologyRequired Elements
- Biopsy results
- CKD stage
- Proteinuria levels
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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