2026 ICD-10-CM Diagnosis Code A75Typhus fever

ICD-10-CM Codes›A00–B99›A75-A79›A75

ICD-10-CM A75
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A75 is a non-billable ICD-10-CM category code for typhus fever, so it cannot be submitted on claims. Use a more specific code from this category instead, such as A75.0, A75.1, A75.2, and A75.3.

Code Identity

ICD-10-CM Code
A75
Billable Status
No — Non-Billable Category
Code Describes
Typhus fever
Chapter
A75-A79
Rickettsioses

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA75-A79Rickettsioses
CategoryA75Typhus fever
This CodeA75Typhus fever

Specific Coding for Typhus feverOverview

Non-specific codes like A75 require more characters. Use one of these billable codes instead:

  • Use A75.0 for Epidemic louse-borne typhus fever due to Rickettsia prowazekii

  • Use A75.1 for Recrudescent typhus [Brill's disease]

  • Use A75.2 for Typhus fever due to Rickettsia typhi

  • Use A75.3 for Typhus fever due to Rickettsia tsutsugamushi

  • Use A75.9 for Typhus fever, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • rickettsiosis due to Ehrlichia sennetsu A79.81

Patient EducationClinical

Bacterial Infections

Bacteria are tiny organisms (living things) that have only one cell. Under a microscope, they look like balls, rods, or spirals. They can be found almost everywhere on Earth. There are lots of bacteria in and on your body. In fact, your body has about 10 times more bacteria cells than human cells.

The full article covers:

  • What are bacteria?
  • How do bacterial infections spread?
  • What are the treatments for bacterial infections?
  • Can bacterial infections be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About A75Overview

Is A75 (Typhus fever) a billable code?

No. This is a category header that groups the codes for typhus fever, and headers cannot be submitted on claims. Claims for typhus fever need a more specific code from this category, such as A75.0, A75.1, and A75.2.