A01.00 – Typhoid fever, unspecified

ICD-10-CM 2027 diagnosis code · Intestinal infectious diseases

Billable code

ICD-10-CM code A01.00

Code: A01.00 (claims format: A0100)
Description: Typhoid fever, unspecified
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 1. Certain infectious and parasitic diseases (A00-B99)
Block: A00-A09 Intestinal infectious diseases
Parent codes: A01 › A01.0

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

A01.0 – Typhoid fever

Applicable to:

Infection due to Salmonella typhi

Index terms for A01.00

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in A01.0

A01.01 – Typhoid meningitisBillable
A01.02 – Typhoid fever with heart involvementBillable
A01.03 – Typhoid pneumoniaBillable
A01.04 – Typhoid arthritisBillable
A01.05 – Typhoid osteomyelitisBillable
A01.09 – Typhoid fever with other complicationsBillable

Frequently asked questions

What is ICD-10 code A01.00?

A01.00 is the ICD-10-CM code for typhoid fever, unspecified, in the block A00-A09 (Intestinal infectious diseases).

Is A01.00 a billable code?

Yes. A01.00 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does A01.00 belong to?

It belongs to category A01 – Typhoid and paratyphoid fevers.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.