U.S. ICD-10-CM · FY 2027

A01 ICD-10-CM Code: Typhoid and paratyphoid fevers

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

Code definition

Official description

A01

Typhoid and paratyphoid fevers

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

Classification

Where A01 sits

  1. 1

    Chapter 1

    Certain infectious and parasitic diseases (A00-B99)

  2. 2

    Section

    Intestinal infectious diseases (A00-A09)

  3. 3

    Category A01

    Typhoid and paratyphoid fevers

  4. 4

    Code A01

    Typhoid and paratyphoid fevers

More specific choices

Codes under A01

A01 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for A01.

Code first

No “code first” instruction is listed for A01.

Use additional code

No “use additional code” instruction is listed for A01.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for A01.

Excludes2

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

No Excludes2 note is listed for A01.

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 A01 mean?

A01 is the FY 2027 U.S. ICD-10-CM code for “Typhoid and paratyphoid fevers.”

Is A01 a billable or specific ICD-10-CM code?

No. A01 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 A01 located in ICD-10-CM?

A01 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.

What coding notes are listed for A01?

No inclusion terms are listed for A01 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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