ICD-10 Code A04.6 – Enteritis due to Yersinia enterocolitica (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A04.6 – Enteritis due to Yersinia enterocolitica
What it is
A04.6 identifies enteritis caused by Yersinia enterocolitica, a bacterial infection of the intestines. Use it when documentation clearly states this organism as the cause of the patient’s enteric illness.
Clinical signs
Typical features include diarrhea, abdominal pain, and sometimes fever after exposure to contaminated food or water. Clinical features vary; refer to documentation.
When to use this code
Use A04.6 when the provider documents enteritis, gastroenteritis, or infectious diarrhea due to Yersinia enterocolitica. It fits confirmed or clearly documented organism-specific infection, not an unspecified intestinal infection. Check documentation if the record only mentions suspected exposure.
Do not use for
Do not use this code for nonspecific diarrhea, food poisoning without identified Yersinia, or other Yersinia species. If the chart does not name Yersinia enterocolitica, check documentation.
Coding tip
Code the organism-specific diagnosis only when the medical record names Yersinia enterocolitica.