A01.00 ICD-10-CM Code: Typhoid fever, unspecified
A01.00 is the billable ICD-10-CM code for “Typhoid fever, unspecified” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
A01.00Typhoid fever, unspecified
ICD-10-CM diagnosis code · United States clinical modification
More specific than A01.00
View subcategoryA01.00 is an unspecified code, for when the note doesn’t say more. If it documents the type, cause, or site, one of these codes may fit better.
Where A01.00 sits
- 1
Chapter 1
Certain infectious and parasitic diseases (A00-B99)
- 2
Section
Intestinal infectious diseases (A00-A09)
- 3
Category A01
Typhoid and paratyphoid fevers
- 4
Subcategory A01.0
Typhoid fever
- 5
Code A01.00
Typhoid fever, unspecified
Notes for this code
Inclusion terms
No inclusion terms are listed for A01.00.
Code first
No “code first” instruction is listed for A01.00.
Use additional code
No “use additional code” instruction is listed for A01.00.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for A01.00.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for A01.00.
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 A01.00 mean?
A01.00 is the FY 2027 U.S. ICD-10-CM code for “Typhoid fever, unspecified.”
Is A01.00 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, A01.00 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 A01.00 located in ICD-10-CM?
A01.00 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Intestinal infectious diseases (A00-A09) (A00–A09), under category A01, Typhoid and paratyphoid fevers and subcategory A01.0, Typhoid fever.
What coding notes are listed for A01.00?
No inclusion terms are listed for A01.00 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.