U.S. ICD-10-CM · FY 2027

T56 ICD-10-CM Code: Toxic effect of metals

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

T56

Toxic effect of metals

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where T56 sits

  1. 1

    Chapter 19

    Injury, poisoning and certain other consequences of external causes (S00-T88)

  2. 2

    Section

    Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)

  3. 3

    Category T56

    Toxic effect of metals

  4. 4

    Code T56

    Toxic effect of metals

More specific choices

Codes under T56

T56 is a non-billable category. Choose the child code that best matches the documented diagnosis.

T56.0

Toxic effects of lead and its compounds

T56.1

Toxic effects of mercury and its compounds

T56.2

Toxic effects of chromium and its compounds

T56.3

Toxic effects of cadmium and its compounds

T56.4

Toxic effects of copper and its compounds

T56.5

Toxic effects of zinc and its compounds

T56.6

Toxic effects of tin and its compounds

T56.7

Toxic effects of beryllium and its compounds

T56.8

Toxic effects of other metals

T56.9

Toxic effects of unspecified metal

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for T56.

Code first

No “code first” instruction is listed for T56.

Use additional code

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

Excludes1

Conditions that should not be reported together with this code.

  • arsenic and its compounds (T57.0)
  • manganese and its compounds (T57.2)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for T56.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code T56 mean?

T56 is the FY 2027 U.S. ICD-10-CM code for “Toxic effect of metals.”

Is T56 a billable or specific ICD-10-CM code?

No. T56 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is T56 located in ICD-10-CM?

T56 is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Toxic effects of substances chiefly nonmedicinal as to source (T51-T65) (T51–T65), under category T56, Toxic effect of metals.

What coding notes are listed for T56?

No inclusion terms are listed for T56 in this reference record. No code-first instruction is listed. Additional-code instructions: code to identify any retained metal foreign body, if applicable (Z18.0-, T18.1-). Excludes1 notes: arsenic and its compounds (T57.0); manganese and its compounds (T57.2). No Excludes2 note is listed.

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