ICD-10 Coding for Glomerulonephritis(N00.2, N04.21)
Complete ICD-10-CM coding and documentation guide for Glomerulonephritis. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Glomerulonephritis
N00-N08Primary Range
Glomerular diseases
This range includes all primary conditions related to glomerular diseases, including various forms of glomerulonephritis.
Nephrotic syndrome
This range is relevant for cases where glomerulonephritis presents with nephrotic syndrome.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| N00.2 | Acute nephritic syndrome with diffuse membranous glomerulonephritis | Use when acute nephritic syndrome is confirmed with diffuse membranous glomerulonephritis. |
|
| N04.21 | Primary nephrotic syndrome with membranous nephropathy | Use when primary membranous nephropathy is confirmed without secondary causes. |
|
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 glomerulonephritis
Essential facts and insights about Glomerulonephritis
Primary ICD-10-CM Codes for glomerulonephritis
Decision Criteria
clinical Criteria
- Presence of diffuse membranous glomerulonephritis confirmed by biopsy.
Applicable To
- Post-streptococcal glomerulonephritis
Excludes
- Chronic kidney disease (N18.-)
Clinical Validation Requirements
- Dark, reddish-brown urine
- Elevated ASO titers
Code-Specific Risks
- Incorrectly coding as unspecified nephritic syndrome.
Coding Notes
- Ensure documentation specifies the type of glomerulonephritis.
N04.21 - Primary nephrotic syndrome with membranous nephropathy
Use when primary membranous nephropathy is confirmed without secondary causes.
Applicable To
- Primary membranous nephropathy
Excludes
- Secondary membranous nephropathy (N04.22)
Clinical Validation Requirements
- Negative PLA2R antibody testing
Coding Notes
Ensure to document the absence of secondary causes.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Differential 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 Glomerulonephritis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code N00.2.
Impact
Clinical: Leads to misdiagnosis and inappropriate treatment., Regulatory: Increases risk of non-compliance with coding standards., Financial: Potential for reduced reimbursement due to unspecified coding.
Mitigation Strategy
Use specific medical terminology, Ensure biopsy results are documented
Impact
Reimbursement: May result in lower DRG assignment and reimbursement., Compliance: Increases risk of audit and non-compliance., Data Quality: Decreases accuracy of clinical data.
Mitigation Strategy
Always use specific codes when biopsy results provide detailed histological findings.
Impact
Using unspecified codes when specific diagnosis is available.
Mitigation Strategy
Ensure detailed documentation and use of specific codes.
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 Glomerulonephritis, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Glomerulonephritis
Use these documentation templates to ensure complete and accurate documentation for Glomerulonephritis. These templates include all required elements for proper coding and billing.
Acute post-streptococcal glomerulonephritis
Specialty: NephrologyRequired Elements
- Patient history
- Clinical presentation
- Laboratory findings
- Biopsy results
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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