2026 ICD-10-CM Diagnosis Code A25Rat-bite fevers

ICD-10-CM Codes›A00–B99›A20-A28›A25

ICD-10-CM A25
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A25 is a non-billable ICD-10-CM category code for rat-bite fevers, so it cannot be submitted on claims. Use a more specific code from this category instead, such as A25.0, A25.1, and A25.9.

Code Identity

ICD-10-CM Code
A25
Billable Status
No — Non-Billable Category
Code Describes
Rat-bite fevers
Chapter
A20-A28
Certain zoonotic bacterial diseases

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA20-A28Certain zoonotic bacterial diseases
CategoryA25Rat-bite fevers
This CodeA25Rat-bite fevers

Specific Coding for Rat-bite feversOverview

Non-specific codes like A25 require more characters. Use one of these billable codes instead:

  • Use A25.0 for Spirillosis

  • Use A25.1 for Streptobacillosis

  • Use A25.9 for Rat-bite fever, unspecified

Patient EducationClinical

Animal Bites

Wild animals usually avoid people. They might attack, however, if they feel threatened, are sick, or are protecting their young or territory. Attacks by pets are more common. Animal bites rarely are life-threatening, but if they become infected, you can develop serious medical problems.

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 A25Overview

Is A25 (Rat-bite fevers) a billable code?

No. This is a category header that groups the codes for rat-bite fevers, and headers cannot be submitted on claims. Claims for rat-bite fevers need a more specific code from this category, such as A25.0, A25.1, and A25.9.