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U.S. ICD-10-CM · FY 2027

T58.04XD ICD-10-CM Code: Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, subsequent encounter

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

Code definition

Official description

T58.04XD

Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, subsequent encounter

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

Classification

Where T58.04XD 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 T58

    Toxic effect of carbon monoxide

  4. 4

    Subcategory T58.04

    Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined

  5. 5

    Code T58.04XD

    Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, subsequent encounter

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for T58.04XD.

Code first

No “code first” instruction is listed for T58.04XD.

Use additional code

No “use additional code” instruction is listed for T58.04XD.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for T58.04XD.

Excludes2

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

No Excludes2 note is listed for T58.04XD.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

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 T58.04XD mean?

T58.04XD is the FY 2027 U.S. ICD-10-CM code for “Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined, subsequent encounter.”

Is T58.04XD a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, T58.04XD has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is T58.04XD located in ICD-10-CM?

T58.04XD 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 T58, Toxic effect of carbon monoxide and subcategory T58.04, Toxic effect of carbon monoxide from motor vehicle exhaust, undetermined.

What coding notes are listed for T58.04XD?

No inclusion terms are listed for T58.04XD in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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