NPI Atlas

A75 – Typhus fever

ICD-10-CM 2027 diagnosis code · Rickettsioses

Non-billable header

ICD-10-CM code A75

Code: A75 (claims format: A75)
Description: Typhus fever
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: A75-A79 Rickettsioses

Billable codes under A75

A75 is a header code and cannot be used on claims. Choose the most specific code:

A75.0 – Epidemic louse-borne typhus fever due to Rickettsia prowazekiiBillable
A75.1 – Recrudescent typhus [Brill's disease]Billable
A75.2 – Typhus fever due to Rickettsia typhiBillable
A75.3 – Typhus fever due to Rickettsia tsutsugamushiBillable
A75.9 – Typhus fever, unspecifiedBillable

Notes for A75

Excludes1 (not coded here):

rickettsiosis due to Ehrlichia sennetsu (A79.81)

Frequently asked questions

What is ICD-10 code A75?

A75 is the ICD-10-CM code for typhus fever, in the block A75-A79 (Rickettsioses).

Is A75 a billable code?

No. A75 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.