A01 – Typhoid and paratyphoid fevers
ICD-10-CM 2027 diagnosis code · Intestinal infectious diseases
ICD-10-CM code
A01
- Code
A01(claims format:A01)- Description
- Typhoid and paratyphoid fevers
- Billable
- No – use a more specific code below
- 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
Billable codes under A01
A01 is a header code and cannot be used on claims. Choose the most specific code:
- A01.0 – Typhoid feverHeader (more codes below)
- A01.1 – Paratyphoid fever ABillable
- A01.2 – Paratyphoid fever BBillable
- A01.3 – Paratyphoid fever CBillable
- A01.4 – Paratyphoid fever, unspecifiedBillable
Frequently asked questions
What is ICD-10 code A01?
A01 is the ICD-10-CM code for typhoid and paratyphoid fevers, in the block A00-A09 (Intestinal infectious diseases).
Is A01 a billable code?
No. A01 is a header code with more specific child codes; report one of the billable codes listed above.
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.