ICD-10 Code A06.1 – Chronic intestinal amebiasis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A06.1 – Chronic intestinal amebiasis
What it is
A06.1 identifies chronic intestinal amebiasis, a long-lasting infection of the intestines caused by Entamoeba histolytica. Use it when the record specifically documents a chronic intestinal form rather than a brief or unspecified amebic illness.
Clinical signs
Clinical features may include persistent abdominal pain, intermittent diarrhea, and dysentery-like symptoms. Documentation may also note chronic colitis or ongoing intestinal complaints; if details are unclear, check documentation.
When to use this code
Use A06.1 when the provider documents chronic intestinal amebiasis, chronic amebic colitis, or a persistent intestinal infection due to E. histolytica. This code fits confirmed intestinal disease with a chronic course. Do not substitute it for nonspecific gastrointestinal symptoms without an amebiasis diagnosis.
Do not use for
Do not use this code for acute intestinal amebiasis, extraintestinal amebiasis, or amebic liver abscess. If the record only says “amebiasis” or the site is not specified, check documentation.
Coding tip
Look for the word “chronic” and confirm the intestinal site before assigning A06.1.