2025
ICD-10-CM
Diagnosis
Code

T56 Toxic effect of metals

  • Non-billable
  • 2016–2025

T56 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Toxic effect of metals.

Includes

  • Toxic effects of fumes and vapors of metals

  • Toxic effects of metals from all sources, except medicinal substances

Use additional code

  • Code to identify any retained metal foreign body, if applicable (Z18.0-, T18.1-)

Type 1 excludes

  • Arsenic and its compounds (T57.0)

  • Manganese and its compounds (T57.2)

Seventh character note

  • The appropriate 7th character is to be added to each code from category T56

Seventh character extensions

  • A: initial encounter

  • D: subsequent encounter

  • S: sequela

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

    No changes

  9. 2017

    No changes

  10. 2016

    New code