What is the ICD-10 code for ureteral stone with hydronephrosis?

The ICD-10 code for ureteral stone with hydronephrosis is N13.2, which indicates hydronephrosis with renal and ureteral calculous obstruction.

When should N13.6 be used instead of N13.2?

Use N13.6 when there is an infection present with hydronephrosis and a stone, as it indicates pyonephrosis.

ICD-10 Coding for Ureteral Stone with Hydronephrosis(N13.2, N13.0, N13.6)

Save

Learn about the ICD-10 coding for ureteral stone with hydronephrosis, including primary codes, documentation requirements, and common pitfalls.

Also known as:

Ureter Stone with HydronephrosisUreteral Calculus with Hydronephrosis

Related ICD-10 Code Ranges

Complete code families applicable to Ureteral Stone with Hydronephrosis

N00-N99Primary Range

Diseases of the genitourinary system

→

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
N13.2	Hydronephrosis with renal and ureteral calculous obstruction	Use when hydronephrosis is confirmed with a ureteral or renal calculus.	CT or MRI showing hydronephrosis and stone location Symptoms such as flank pain hematuria
N13.6	Pyonephrosis	Use when infection is present with hydronephrosis and stone.	Positive urine culture Fever and leukocytosis

Primary ICD-10-CM Codes

Hydronephrosis with renal and ureteral calculous obstruction

N13.2Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

PyonephrosisN13.6

Use when infection is present with hydronephrosis and stone.

Hydronephrosis with renal and ureteral calculous obstructionN13.2

Use when no infection is present.

Documentation & Coding Risks

Avoid these common issues when documenting Ureteral Stone with Hydronephrosis.

Failing to document hydronephrosis explicitly

Impact

Clinical: Misrepresentation of patient condition, Regulatory: Potential for audit issues, Financial: Denial of claims due to incorrect coding

Mitigation

Educate clinicians on documentation standards, Use templates with required fields

Using N20.1 when hydronephrosis is documented

Impact

Reimbursement: Incorrect DRG assignment may reduce reimbursement., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation

Verify imaging reports for hydronephrosis before coding.

Incorrect Code Usage

Impact

Using N20.1 instead of N13.2 when hydronephrosis is present.

Mitigation

Regular training and audits of coding practices.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with N13.2.

Primary Code

N13.2

Hydronephrosis with renal and ureteral calculous obstruction

Quick Navigation

ICD-10 codes7

Coding risks3

FAQs2

ICD-10 Coding for Ureteral Stone with Hydronephrosis(N13.2, N13.0, N13.6)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for ureteral stone with hydronephrosis?

When should N13.6 be used instead of N13.2?

Related condition guides