All ICD10 Codes

A25

Non-Billable
ChapterA00–B99
Rankcategory
Description

Rat-bite fevers

About ICD-10-CM code A25

A25 is the ICD-10-CM diagnosis code for Rat-bite fevers. It sits in A00-B99 Certain Infectious and Parasitic Diseases, within Certain zoonotic bacterial diseases (A20-A28). A25 is not billable on its own, coders must choose one of its more specific child codes instead.

Use a more specific code (3 billable)
A25.0SpirillosisA25.1StreptobacillosisA25.9Rat-bite fever, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • carrier or suspected carrier of infectious disease (Z22.-)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
Use Additional Code
  • code to identify resistance to antimicrobial drugs (Z16.-)

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
A20-A28Certain zoonotic bacterial diseases (A20-A28)
A25Rat-bite feversNot billable
A25.0SpirillosisBillable
A25.1StreptobacillosisBillable
A25.9Rat-bite fever, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to A25:

chapterCH1
Certain infectious and parasitic diseases (A00-B99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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