N20.0

Billable

Calculus of kidney

N20.0 is the ICD-10-CM code for Calculus of kidney. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
N00-N99
Parent
N20
Edition
FY2026

N00-N99 Diseases of the genitourinary system

What this means — in plain language

MedlinePlus · NIH

A kidney stone is a solid piece of material that forms in the kidney from substances in the urine. It may be as small as a grain of sand or as large as a pearl. Most kidney stones pass out of the body without help from a doctor. But sometimes a stone will not go away. It may get stuck in the urinary tract, block the flow of urine and cause great pain. The following may be signs of kidney stones that need a doctor's…

Read more about Kidney Stones at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • Nephrolithiasis NOS
  • Renal calculus
  • Renal stone
  • Staghorn calculus
  • Stone in kidney

Frequently asked questions

What is ICD-10 code N20.0?
N20.0 is the ICD-10-CM code for "Calculus of kidney". It falls under N00-N99 Diseases of the genitourinary system.
Is N20.0 a billable code?
Yes — N20.0 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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