U.S. ICD-10-CM · FY 2027

T59 ICD-10-CM Code: Toxic effect of other gases, fumes and vapors

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

Code definition

Official description

T59

Toxic effect of other gases, fumes and vapors

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

Classification

Where T59 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 T59

    Toxic effect of other gases, fumes and vapors

  4. 4

    Code T59

    Toxic effect of other gases, fumes and vapors

More specific choices

Codes under T59

T59 is a non-billable category. Choose the child code that best matches the documented diagnosis.

T59.0

Toxic effect of nitrogen oxides

T59.1

Toxic effect of sulfur dioxide

T59.2

Toxic effect of formaldehyde

T59.3

Toxic effect of lacrimogenic gas

T59.4

Toxic effect of chlorine gas

T59.5

Toxic effect of fluorine gas and hydrogen fluoride

T59.6

Toxic effect of hydrogen sulfide

T59.7

Toxic effect of carbon dioxide

T59.8

Toxic effect of other specified gases, fumes and vapors

T59.9

Toxic effect of unspecified gases, fumes and vapors

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for T59.

Code first

No “code first” instruction is listed for T59.

Use additional code

No “use additional code” instruction is listed for T59.

Excludes1

Conditions that should not be reported together with this code.

  • chlorofluorocarbons (T53.5)

Excludes2

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

No Excludes2 note is listed for T59.

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 T59 mean?

T59 is the FY 2027 U.S. ICD-10-CM code for “Toxic effect of other gases, fumes and vapors.”

Is T59 a billable or specific ICD-10-CM code?

No. T59 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 T59 located in ICD-10-CM?

T59 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 T59, Toxic effect of other gases, fumes and vapors.

What coding notes are listed for T59?

No inclusion terms are listed for T59 in this reference record. No code-first instruction is listed. Excludes1 notes: chlorofluorocarbons (T53.5). No Excludes2 note is listed.

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