ICD-10 Code A00.0 – Cholera due to Vibrio cholerae 01, biovar cholerae (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A00.0 – Cholera due to Vibrio cholerae 01, biovar cholerae
What it is
This code identifies cholera caused by Vibrio cholerae 01, biovar cholerae. It is an acute intestinal infection that can produce severe watery diarrhea and rapid fluid loss.
Clinical signs
Typical findings include profuse watery diarrhea, vomiting, and signs of dehydration. Clinical features vary; refer to documentation, especially when the organism is confirmed by testing.
When to use this code
Use A00.0 when the record clearly documents cholera due to Vibrio cholerae 01, biovar cholerae. Code it when the provider specifies this organism or the diagnosis is confirmed in the chart.
Do not assume this code from nonspecific gastroenteritis or traveler’s diarrhea alone. If the documentation names a different Vibrio species or biovar, select the more specific reported diagnosis.
Do not use for
Do not use this code for unspecified cholera, other Vibrio infections, or noninfectious diarrhea. Check documentation if the organism is not clearly identified.
Coding tip
Match the exact organism and biovar in the note before assigning A00.0.