2026 ICD-10-CM Diagnosis Code A07Other protozoal intestinal diseases

ICD-10-CM Codes›A00–B99›A00-A09›A07

ICD-10-CM A07
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A07 is a non-billable ICD-10-CM category code for other protozoal intestinal diseases, so it cannot be submitted on claims. Use a more specific code from this category instead, such as A07.0, A07.1, A07.2, and A07.3.

Code Identity

ICD-10-CM Code
A07
Billable Status
No — Non-Billable Category
Code Describes
Other protozoal intestinal diseases
Chapter
A00-A09
Intestinal infectious diseases

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA00-A09Intestinal infectious diseases
CategoryA07Other protozoal intestinal diseases
This CodeA07Other protozoal intestinal diseases

Specific Coding for Other protozoal intestinal diseasesOverview

Non-specific codes like A07 require more characters. Use one of these billable codes instead:

  • Use A07.0 for Balantidiasis

  • Use A07.1 for Giardiasis [lambliasis]

  • Use A07.2 for Cryptosporidiosis

  • Use A07.3 for Isosporiasis

  • Use A07.4 for Cyclosporiasis

  • Use A07.8 for Other specified protozoal intestinal diseases

  • Use A07.9 for Protozoal intestinal disease, unspecified

Patient EducationClinical

Gastroenteritis

Gastroenteritis is an inflammation of the lining of the stomach and intestines. The main symptoms include vomiting and diarrhea. It is usually not serious in healthy people, but it can sometimes lead to dehydration or cause severe symptoms.

The full article covers:

  • What is gastroenteritis?
  • What causes gastroenteritis?
  • What are the symptoms of gastroenteritis?
  • How is gastroenteritis diagnosed?
  • What are the treatments for gastroenteritis?
  • Can gastroenteritis 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 A07Overview

Is A07 (Other protozoal intestinal diseases) a billable code?

No. This is a category header that groups the codes for other protozoal intestinal diseases, and headers cannot be submitted on claims. Claims for other protozoal intestinal diseases need a more specific code from this category, such as A07.0, A07.1, and A07.2.