ICD-10 Code A28.0 – Pasteurellosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A28.0 – Pasteurellosis
What it is
Pasteurellosis is an infection caused by Pasteurella species, most often after an animal bite or scratch. You use this code when the record identifies pasteurellosis as the diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the record may describe local wound infection, redness, swelling, pain, or drainage after animal exposure, and sometimes systemic illness.
When to use this code
Use A28.0 when the provider documents pasteurellosis as the confirmed diagnosis, especially in the setting of a cat or dog bite. It may also apply when a Pasteurella infection is specifically named in the assessment or discharge summary. Check documentation if the source organism is not clearly identified.
Do not use for
Do not use this code for a simple animal bite without documented infection. If the chart only states cellulitis, abscess, or wound infection without Pasteurella, code the documented condition instead.
Coding tip
Verify that Pasteurella is named explicitly in the record before assigning A28.0.