ICD-10 Guide

Ureterolithiasis

ICD-10 Coding for Ureterolithiasis(N20.1, N13.2)

PRIMARY SPECIALTYEmergency Medicine

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Ureterolithiasis?

Essential facts and insights about Ureterolithiasis

Key Clinical Considerations:

Severe flank pain, hematuria, nausea, vomiting
CT scan of abdomen/pelvis, ultrasound, urinalysis
Costovertebral angle tenderness, abdominal tenderness

Clinical Information

Clinical Criteria & Documentation Requirements

Patient history, presenting symptoms, imaging results
ICD-10-CM codes for ureterolithiasis, associated conditions
Example: 'Patient presents with acute flank pain and hematuria, CT confirms 5mm stone in right ureter.'

Coding Guidelines

Usage Guidelines & Examples

Use N20.0 for kidney stones, N20.1 for ureter stones.
Common errors include misclassifying stone location or size.

Code Exclusions

Important Exclusions

Other urinary tract obstructions, infections
Alternative codes for non-stone related renal issues

Specialty Focus

Primary Specialty

Emergency Medicine

Specialty Applications

Adults, pediatric patients with urinary stone disease
Emergency departments, urgent care facilities

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

Comprehensive clinical documentation
Accurate code selection based on clinical criteria
Proper exclusion considerations
Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

Ensure proper documentation for billing
Verify code specificity requirements
Check for any additional codes needed
Review payer-specific guidelines

Common Issues

Insufficient clinical documentation
Incorrect code selection
Missing supporting diagnoses
Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Include detailed patient history, imaging results, and treatment plan.

Billing considerations?

Ensure accurate coding to reflect the severity and location of stones.

Ureterolithiasis

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?

Ureterolithiasis

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?