2025
ICD-10-CM
Diagnosis
Code

N20 Calculus of kidney and ureter

  • Non-billable
  • 2016–2025

N20 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Calculus of kidney and ureter.

Inclusion term

  • Calculous pyelonephritis

Type 1 excludes

  • Nephrocalcinosis (E83.59)

  • That with hydronephrosis (N13.2)

Codes

Versions

  1. 2025

    No changes

  2. 2024

    Code changed

    • Type 1 excludes

        • nephrocalcinosis (E83.5)
        • that with hydronephrosis (N13.2)
        • nephrocalcinosis (E83.59)
        • that with hydronephrosis (N13.2)

  3. 2023

    No changes

  4. 2022

    No changes

  5. 2021

    No changes

  6. 2020

    No changes

  7. 2019

    No changes

  8. 2018

    No changes

  9. 2017

    No changes

  10. 2016

    New code