ICD-10-CM T56: Toxic effect of metals

ICD-10-CM Diagnosis Code (2025)

Official Description for T56

Toxic effect of metals

Coding Notes & Guidelines for T56

Includes Notes
  • toxic effects of fumes and vapors of metals
  • toxic effects of metals from all sources, except medicinal substances
Excludes1: Not Coded Here
  • arsenic and its compounds (T57.0)
  • manganese and its compounds (T57.2)
Excludes1: Not Coded Here

adverse effect of diagnostic agents (T50.8X5-)

Use Additional Code

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

Inclusion Terms

Toxic effects of lead and its compounds NOS

Inclusion Terms

Toxic effects of mercury and its compounds NOS

Inclusion Terms

Toxic effects of chromium and its compounds NOS

Inclusion Terms

Toxic effects of cadmium and its compounds NOS

Inclusion Terms

Toxic effects of copper and its compounds NOS

Inclusion Terms

Toxic effects of zinc and its compounds NOS

Inclusion Terms

Toxic effects of tin and its compounds NOS

Inclusion Terms

Toxic effects of beryllium and its compounds NOS

Inclusion Terms

Toxic effect of thallium NOS

Inclusion Terms

Toxic effect of gadolinium NOS

Inclusion Terms

Toxic effects of other metals NOS

7th Character Guidance

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

7th Character Definitions
  • A: initial encounter
  • D: subsequent encounter
  • S: sequela

Child Codes (More Specific Codes for T56):

T56.0 - Toxic effects of lead and its compounds T56.0X - Toxic effects of lead and its compounds T56.0X1 - Toxic effect of lead and its compounds, accidental (unintentional) T56.0X2 - Toxic effect of lead and its compounds, intentional self-harm T56.0X3 - Toxic effect of lead and its compounds, assault T56.0X4 - Toxic effect of lead and its compounds, undetermined T56.1 - Toxic effects of mercury and its compounds T56.1X - Toxic effects of mercury and its compounds T56.1X1 - Toxic effect of mercury and its compounds, accidental (unintentional) T56.1X2 - Toxic effect of mercury and its compounds, intentional self-harm T56.1X3 - Toxic effect of mercury and its compounds, assault T56.1X4 - Toxic effect of mercury and its compounds, undetermined T56.2 - Toxic effects of chromium and its compounds T56.2X - Toxic effects of chromium and its compounds T56.2X1 - Toxic effect of chromium and its compounds, accidental (unintentional) T56.2X2 - Toxic effect of chromium and its compounds, intentional self-harm T56.2X3 - Toxic effect of chromium and its compounds, assault T56.2X4 - Toxic effect of chromium and its compounds, undetermined T56.3 - Toxic effects of cadmium and its compounds T56.3X - Toxic effects of cadmium and its compounds T56.3X1 - Toxic effect of cadmium and its compounds, accidental (unintentional) T56.3X2 - Toxic effect of cadmium and its compounds, intentional self-harm T56.3X3 - Toxic effect of cadmium and its compounds, assault T56.3X4 - Toxic effect of cadmium and its compounds, undetermined T56.4 - Toxic effects of copper and its compounds T56.4X - Toxic effects of copper and its compounds T56.4X1 - Toxic effect of copper and its compounds, accidental (unintentional) T56.4X2 - Toxic effect of copper and its compounds, intentional self-harm T56.4X3 - Toxic effect of copper and its compounds, assault T56.4X4 - Toxic effect of copper and its compounds, undetermined T56.5 - Toxic effects of zinc and its compounds T56.5X - Toxic effects of zinc and its compounds T56.5X1 - Toxic effect of zinc and its compounds, accidental (unintentional) T56.5X2 - Toxic effect of zinc and its compounds, intentional self-harm T56.5X3 - Toxic effect of zinc and its compounds, assault T56.5X4 - Toxic effect of zinc and its compounds, undetermined T56.6 - Toxic effects of tin and its compounds T56.6X - Toxic effects of tin and its compounds T56.6X1 - Toxic effect of tin and its compounds, accidental (unintentional) T56.6X2 - Toxic effect of tin and its compounds, intentional self-harm T56.6X3 - Toxic effect of tin and its compounds, assault T56.6X4 - Toxic effect of tin and its compounds, undetermined T56.7 - Toxic effects of beryllium and its compounds T56.7X - Toxic effects of beryllium and its compounds T56.7X1 - Toxic effect of beryllium and its compounds, accidental (unintentional) T56.7X2 - Toxic effect of beryllium and its compounds, intentional self-harm T56.7X3 - Toxic effect of beryllium and its compounds, assault T56.7X4 - Toxic effect of beryllium and its compounds, undetermined T56.8 - Toxic effects of other metals T56.81 - Toxic effect of thallium T56.811 - Toxic effect of thallium, accidental (unintentional) T56.812 - Toxic effect of thallium, intentional self-harm T56.813 - Toxic effect of thallium, assault T56.814 - Toxic effect of thallium, undetermined T56.82 - Toxic effect of gadolinium T56.821 - Toxic effect of gadolinium, accidental (unintentional) T56.822 - Toxic effect of gadolinium, intentional self-harm T56.823 - Toxic effect of gadolinium, assault T56.824 - Toxic effect of gadolinium, undetermined T56.89 - Toxic effects of other metals T56.891 - Toxic effect of other metals, accidental (unintentional) T56.892 - Toxic effect of other metals, intentional self-harm T56.893 - Toxic effect of other metals, assault T56.894 - Toxic effect of other metals, undetermined T56.9 - Toxic effects of unspecified metal T56.91 - Toxic effect of unspecified metal, accidental (unintentional) T56.92 - Toxic effect of unspecified metal, intentional self-harm T56.93 - Toxic effect of unspecified metal, assault T56.94 - Toxic effect of unspecified metal, undetermined

About ICD-10-CM Code T56 (Toxic effect of metals)

ICD-10-CM code T56 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 T56 became effective on October 1, 2024.

This page provides detailed information about T56 - Toxic effect of metals. 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 Toxic effect of metals.