2025
ICD-10-CM
Diagnosis
Code

K59.3 Megacolon, not elsewhere classified

  • Non-billable
  • 2016–2025

K59.3 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Megacolon, not elsewhere classified.

Inclusion term

  • Dilatation of colon

Code first

  • If applicable (T51-T65) to identify toxic agent

Type 1 excludes

  • Congenital megacolon (aganglionic) (Q43.1)

  • Megacolon (due to) (in) Chagas' disease (B57.32)

  • Megacolon (due to) (in) Clostridium difficile (A04.7-)

  • Megacolon (due to) (in) Hirschsprung's disease (Q43.1)

Codes

Versions

  1. 2025

    No changes

  2. 2024

    No changes

  3. 2023

    No changes

  4. 2022

    No changes

  5. 2021

    No changes

  6. 2020

    No changes

  7. 2019

    No changes

  8. 2018

    Code changed

    • Type 1 excludes

        • congenital megacolon (aganglionic) (Q43.1)
        • megacolon (due to) (in) Chagas' disease (B57.32)
        • megacolon (due to) (in) Clostridium difficile (A04.7)
        • megacolon (due to) (in) Hirschsprung's disease (Q43.1)
        • congenital megacolon (aganglionic) (Q43.1)
        • megacolon (due to) (in) Chagas' disease (B57.32)
        • megacolon (due to) (in) Clostridium difficile (A04.7-)
        • megacolon (due to) (in) Hirschsprung's disease (Q43.1)

  9. 2017

    Code changed

    • Code first

        • (T51-T65) to identify toxic agent
        • , if applicable (T51-T65) to identify toxic agent

    • Inclusion term

        • Dilatation of colon
        • Toxic megacolon
        • Dilatation of colon

  10. 2016

    New code