ICD-10 T75.830
Non-Billable HeaderGulf war illness
About ICD-10-CM T75.830
ICD-10-CM code T75.830 represents Gulf war illness. This is a non-billable header code in the Injury, Poisoning, and External Causes chapter (block T75). The 2026 edition of ICD-10-CM T75.830 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Coding Tips for T75.830
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
Injury codes require a 7th character: A (initial encounter, active treatment), D (subsequent, healing/recovery), S (sequela, late effect of original injury). Codes with fewer than 6 characters need the placeholder X to bring them to 6 characters before adding the 7th. Wrong or missing 7th character is the #1 cause of injury claim denials.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under T75.830. Per CMS ICD-10-CM Tabular 2026.
- Gulf war syndrome
Medicare LCD Coverage for T75.830
Local Coverage Determinations (LCDs) from CMS MACs that list T75.830 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing T75.830.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but T75.830 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with T75.830
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To T75.830
Other codes in section T66-T78 (Other and unspecified effects of external causes).
ICD-10 T75.830, Billing FAQ
Is ICD-10 code T75.830 billable? +
No, T75.830 is a non-billable header code. Use a more specific child code from block T75 when submitting claims.
What other names or terms map to T75.830? +
ICD-10 T75.830 includes: Gulf war syndrome.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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