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ICD-10 Coding for Kidney Stones(N20.0, N13.2, N20.1)

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Comprehensive guide to ICD-10 coding for nephrolithiasis, including code relationships, documentation requirements, and common pitfalls.

Also known as:
Renal CalculiUrolithiasisUrinary Stones
Related ICD-10 Code Ranges

Complete code families applicable to Kidney Stones

N00-N99Primary Range

Diseases of the genitourinary system

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescription
N20.0Calculus of kidney
N13.2Hydronephrosis with renal and ureteral calculous obstruction
Primary ICD-10-CM Codes
Calculus of kidney
N20.0Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Calculus in bladderN21.0
Calculus of ureterN20.1

Documentation & Coding Risks

Avoid these common issues when documenting Kidney Stones.

Failing to specify stone location

Impact

Clinical: Impacts treatment decisions., Regulatory: Can lead to coding errors., Financial: May affect reimbursement rates.

Mitigation

Always include location in documentation., Use specific terminology.

Using N20.0 and N13.2 together

Impact

Reimbursement: Incorrect coding can lead to claim denials., Compliance: Violates ICD-10 Excludes1 notes., Data Quality: Leads to inaccurate clinical data.

Mitigation

Use N13.2 alone when hydronephrosis is present.

Code Combination Errors

Impact

Using N20.0 with N13.2 can trigger audits.

Mitigation

Educate coders on Excludes1 notes.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with N20.0.