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U.S. ICD-10-CM · FY 2027

T75.830 ICD-10-CM Code: Gulf war illness

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

Code definition

Official description

T75.830

Gulf war illness

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

Classification

Where T75.830 sits

  1. 1

    Chapter 19

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

  2. 2

    Section

    Other and unspecified effects of external causes (T66-T78)

  3. 3

    Category T75

    Other and unspecified effects of other external causes

  4. 4

    Subcategory T75.83

    Effects of war theater

  5. 5

    Code T75.830

    Gulf war illness

More specific choices

Codes under T75.830

T75.830 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

  • Gulf war syndrome

Code first

No “code first” instruction is listed for T75.830.

Use additional code

No “use additional code” instruction is listed for T75.830.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for T75.830.

Excludes2

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

No Excludes2 note is listed for T75.830.

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 T75.830 mean?

T75.830 is the FY 2027 U.S. ICD-10-CM code for “Gulf war illness.”

Is T75.830 a billable or specific ICD-10-CM code?

No. T75.830 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 T75.830 located in ICD-10-CM?

T75.830 is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Other and unspecified effects of external causes (T66-T78) (T66–T78), under category T75, Other and unspecified effects of other external causes and subcategory T75.83, Effects of war theater.

What coding notes are listed for T75.830?

Its listed inclusion terms are Gulf war syndrome. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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