ICD-10 Coding for Renal Stone(N20.0, N20.1, N13.2)
Complete ICD-10-CM coding and documentation guide for Renal Stone. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Renal Stone
N20-N23Primary Range
Calculus of kidney and ureter
This range includes all codes related to stones in the urinary system, specifically the kidney and ureter.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| N20.0 | Calculus of kidney | Use when a stone is confirmed in the kidney without ureteral involvement. |
|
| N20.1 | Calculus of ureter | Use when a stone is confirmed in the ureter. |
|
| N13.2 | Hydronephrosis with calculus of kidney and ureter | Use when hydronephrosis is present with a stone in the kidney or ureter. |
|
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 kidney stone
Essential facts and insights about Renal Stone
Primary ICD-10-CM Codes for renal stone
Decision Criteria
clinical Criteria
- Imaging confirms stone in kidney
Clinical Validation Requirements
- Imaging confirming renal stone
- Stone size and location documented
Code-Specific Risks
- Incorrectly coding when hydronephrosis is present
Coding Notes
- Ensure documentation specifies the location and size of the stone.
N20.1 - Calculus of ureter
Use when a stone is confirmed in the ureter.
Excludes
- Calculus of kidney (N20.0)
Clinical Validation Requirements
- Imaging confirming ureteral stone
- Documentation of obstruction or colic
Coding Notes
Ensure documentation specifies the location and any associated obstruction.
N13.2 - Hydronephrosis with calculus of kidney and ureter
Use when hydronephrosis is present with a stone in the kidney or ureter.
Excludes
- Calculus of kidney without hydronephrosis (N20.0)
Clinical Validation Requirements
- Imaging showing hydronephrosis and stone
Coding Notes
Sequence N13.2 before N20.0 or N20.1 when hydronephrosis is present.
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 Renal Stone to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code N20.0.
Impact
Clinical: Impacts treatment decisions., Regulatory: Non-compliance with coding guidelines., Financial: Potential claim denials.
Mitigation Strategy
Always document left or right side., Use templates that prompt for laterality.
Impact
Reimbursement: Incorrect DRG assignment leading to potential underpayment., Compliance: Violation of Excludes1 note., Data Quality: Inaccurate clinical data representation.
Mitigation Strategy
Use N13.2 alone when hydronephrosis is present.
Impact
Using N20.0 and N13.2 together incorrectly.
Mitigation Strategy
Educate coders on Excludes1 notes and proper sequencing.
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 Renal Stone, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Renal Stone
Use these documentation templates to ensure complete and accurate documentation for Renal Stone. These templates include all required elements for proper coding and billing.
Renal stone with hydronephrosis
Specialty: UrologyRequired Elements
- Stone location
- Stone size
- Imaging results
- Symptoms
- Treatment plan
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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