ICD-10-CM N20: Calculus of kidney and ureter

ICD-10-CM Diagnosis Code (2025)

Official Description for N20

Calculus of kidney and ureter

Coding Notes & Guidelines for N20

Excludes1: Not Coded Here
  • nephrocalcinosis (E83.59)
  • that with hydronephrosis (N13.2)
Inclusion Terms

Calculous pyelonephritis

Inclusion Terms
  • Nephrolithiasis NOS
  • Renal calculus
  • Renal stone
  • Staghorn calculus
  • Stone in kidney
Inclusion Terms
  • Calculus of the ureteropelvic junction
  • Ureteric stone

Child Codes (More Specific Codes for N20):

About ICD-10-CM Code N20 (Calculus of kidney and ureter)

ICD-10-CM code N20 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM N20 became effective on October 1, 2024.

This page provides detailed information about N20 - Calculus of kidney and ureter. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Calculus of kidney and ureter.