ICD-10 Code A28.2 – Extraintestinal yersiniosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A28.2 – Extraintestinal yersiniosis
What it is
A28.2 identifies infection caused by Yersinia species outside the intestine. Use it when documentation specifies extraintestinal yersiniosis, such as spread beyond the gastrointestinal tract.
Clinical signs
Clinical features vary; refer to documentation. Reported findings may reflect infection in organs or tissues beyond the gut, with signs depending on the site involved and the patient’s overall condition.
When to use this code
Use A28.2 when the record clearly states extraintestinal yersiniosis or Yersinia infection outside the intestine. It fits confirmed diagnoses involving nonintestinal sites, not just suspected exposure or gastrointestinal illness. If the chart only says yersiniosis without location, check documentation before coding.
Do not use for
Do not use this code for intestinal yersiniosis or nonspecific gastroenteritis caused by Yersinia. Check documentation if the provider describes only abdominal symptoms, carrier status, or an unspecified bacterial infection.
Coding tip
Code the infection site and organism exactly as documented; if the record does not confirm extraintestinal involvement, query or check documentation.