A00Header code — not billable

Cholera

Chapter
1. Certain infectious and parasitic diseases
Category
A00
Effective date
October 1, 2026

Related codes in category A00

A00.0Cholera due to Vibrio cholerae 01, biovar choleraeYesA00.1Cholera due to Vibrio cholerae 01, biovar eltorYesA00.9Cholera, unspecifiedYes

Frequently asked questions

What is ICD-10 code A00?

A00 is an ICD-10-CM diagnosis code for Cholera.

Is A00 a billable code?

No. A00 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is A00 in?

A00 falls under Chapter 1: Certain infectious and parasitic diseases.

When did A00 become effective?

A00 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to A00?

A00 belongs to category A00, which includes 3 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.