A79.0 ICD-10-CM Code: Trench fever
A79.0 is the billable ICD-10-CM code for “Trench fever” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
A79.0Trench fever
ICD-10-CM diagnosis code · United States clinical modification
Where A79.0 sits
- 1
Chapter 1
Certain infectious and parasitic diseases (A00-B99)
- 2
Section
Rickettsioses (A75-A79)
- 3
Category A79
Other rickettsioses
- 4
Code A79.0
Trench fever
Notes for this code
Inclusion terms
- Quintan fever
- Wolhynian fever
Code first
No “code first” instruction is listed for A79.0.
Use additional code
No “use additional code” instruction is listed for A79.0.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for A79.0.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for A79.0.
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.
Frequently asked questions
What does ICD-10-CM code A79.0 mean?
A79.0 is the FY 2027 U.S. ICD-10-CM code for “Trench fever.”
Is A79.0 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, A79.0 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 A79.0 located in ICD-10-CM?
A79.0 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Rickettsioses (A75-A79) (A75–A79), under category A79, Other rickettsioses.
What coding notes are listed for A79.0?
Its listed inclusion terms are Quintan fever; Wolhynian fever. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.