ICD-10 A75
Non-Billable HeaderTyphus fever
About ICD-10-CM A75
ICD-10-CM code A75 represents Typhus fever. This is a non-billable header code in the Infectious and Parasitic Diseases chapter (block A75). The 2026 edition of ICD-10-CM A75 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.
Type 1 Excludes
Pure excludes, these codes can never be coded together with A75. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- rickettsiosis due to Ehrlichia sennetsu (A79.81)
Medicare LCD Coverage for A75
Local Coverage Determinations (LCDs) from CMS MACs that list A75 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 A75.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but A75 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with A75
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 A75
Other codes in section A75-A79 (Rickettsioses).
ICD-10 A75, Billing FAQ
Is ICD-10 code A75 billable? +
No, A75 is a non-billable header code. Use a more specific child code from block A75 when submitting claims.
What codes are Type 1 Excludes for A75? +
Type 1 Excludes (never code together with A75): rickettsiosis due to Ehrlichia sennetsu (A79.81)
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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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