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ICD-10 Coding for Ureteral Calculus(N20.1, N13.0, N13.2)

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Learn about ICD-10 coding for ureteral calculus, including primary and differential codes, documentation requirements, and common pitfalls.

Also known as:
UreterolithiasisUreteral Stone
Related ICD-10 Code Ranges

Complete code families applicable to Ureteral Calculus

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
N20.1Calculus of ureter
N13.2Hydronephrosis with ureteral obstruction
Primary ICD-10-CM Codes
Calculus of ureter
N20.1Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Hydronephrosis with ureteral obstructionN13.2
Calculus of ureterN20.1

Documentation & Coding Risks

Avoid these common issues when documenting Ureteral Calculus.

Not specifying laterality of ureteral stone

Impact

Clinical: Impacts treatment decisions, Regulatory: Leads to coding inaccuracies, Financial: May affect reimbursement rates

Mitigation

Always document left or right side, Use templates that prompt for laterality

Coding both N20.1 and N13.2 together

Impact

Reimbursement: Incorrect sequencing can affect DRG assignment., Compliance: Violates ICD-10 Excludes1 note., Data Quality: Leads to inaccurate clinical data.

Mitigation

Use N13.2 exclusively when hydronephrosis is present.

Incorrect code sequencing

Impact

Using N20.1 and N13.2 together when hydronephrosis is present.

Mitigation

Educate coders on Excludes1 notes and proper sequencing.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with N20.1.