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v1.0.0
ICD-10 Guide
DiagnosesRight Renal Stone

Right Renal Stone

ICD-10 Coding for Right Renal Stone(N20.0, N13.2)

PRIMARY SPECIALTYEmergency Medicine
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Right Renal Stone?
Essential facts and insights about Right Renal Stone

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 terminology for renal stones, specific laterality
  • Example: 'Patient presents with right flank pain and hematuria, CT confirms right renal stone.'

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for coding laterality and type of stone.
  • Common errors include incorrect laterality or unspecified type.

Code Exclusions

Important Exclusions

  • Other types of urinary stones, conditions mimicking renal colic
  • N20.0 (Calculus of unspecified kidney)

Related ICD-10 Codes

Primary Codes
N20.1
Calculus of right kidney
Ancillary Codes
R10.11
Differential Codes
N20.1
N20.1
if the stone is located in the ureter.
N20.0
N20.0
if there is no hydronephrosis.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Emergency Medicine

Specialty Applications

  • Adults, pediatric patients with renal stones
  • Emergency departments, urgent care settings

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 clinical findings.

Billing considerations?

Ensure correct ICD-10 code is used for accurate reimbursement.