2027 ICD-10-CM Diagnosis Code A00Cholera

ICD-10-CM Codes›A00–B99›A00-A09›A00

ICD-10-CM A00
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

A00 is a non-billable ICD-10-CM category code for cholera, so it cannot be submitted on claims. Use a more specific code from this category instead, such as A00.0, A00.1, and A00.9.

Code Identity

ICD-10-CM Code
A00
Billable Status
No — Non-Billable Category
Code Describes
Cholera
Short Description
Cholera
Same as the full description in the CMS dataset.
Chapter
A00-A09
Intestinal infectious diseases

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA00-A09Intestinal infectious diseases
CategoryA00Cholera
This CodeA00Cholera

Specific Coding for CholeraOverview

Non-specific codes like A00 require more characters. Use one of these billable codes instead:

  • Use A00.0 for Cholera due to Vibrio cholerae 01, biovar cholerae

  • Use A00.1 for Cholera due to Vibrio cholerae 01, biovar eltor

  • Use A00.9 for Cholera, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to A00: its own notes plus those printed at Chapter 1. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • diseases generally recognized as communicable or transmissible

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • 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

Add a second code, after this one, to fully describe the condition.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • code to identify resistance to antimicrobial drugs (Z16.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name A00, its category, or a range that includes it.

Excludes2 2

These codes carry an Excludes2 note naming A00: its condition is not part of those codes, and both may be reported when the patient has both.

  • Block P35-P39 Infections specific to the perinatal period
    intestinal infectious disease (A00-A09)
  • P37 Other congenital infectious and parasitic diseases
    infectious neonatal diarrhea (A00-A09)

Clinical InformationClinical

  • Cholera

    an acute diarrheal disease endemic in india and southeast asia whose causative agent is vibrio cholerae. this condition can lead to severe dehydration in a matter of hours unless quickly treated.

Patient EducationClinical

Cholera

Cholera is a bacterial infection that causes diarrhea. The cholera bacterium is usually found in water or food that has been contaminated by feces (poop). Cholera is rare in the US. You may get it if you travel to parts of the world with poor water and sewage treatment. Outbreaks can also happen after disasters.

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About A00Overview

What is the ICD-10 code for cholera?

A00 is the ICD-10-CM category for cholera, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is A00 (Cholera) a billable code?

No. This is a category header that groups the codes for cholera, and headers cannot be submitted on claims. Claims for cholera need a more specific code from this category, such as A00.0, A00.1, and A00.9.