2025
ICD-10-CM
Diagnosis
Code

A09 Infectious gastroenteritis and colitis, unspecified

Billable
2016–2025

A09 is a billable/specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Infectious gastroenteritis and colitis, unspecified.

Inclusion term

Infectious colitis NOS
Infectious enteritis NOS
Infectious gastroenteritis NOS

Type 1 excludes

Colitis NOS (K52.9)
Diarrhea NOS (R19.7)
Enteritis NOS (K52.9)
Gastroenteritis NOS (K52.9)
Noninfective gastroenteritis and colitis, unspecified (K52.9)

Versions

2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code