Amebic nondysenteric colitis

This code signifies an infection of the colon caused by the parasite Entamoeba histolytica that does not present with the severe, bloody diarrhea characteristic of dysentery. Patients typically experience milder gastrointestinal symptoms such as abdominal pain, cramping, and watery diarrhea.

Apply this code when documentation confirms amebic colitis without evidence of dysentery. This diagnosis is often supported by stool microscopy identifying Entamoeba histolytica trophozoites or cysts, or positive serology in a patient with compatible symptoms.

• Differentiate from amebic dysentery (A06.0) which involves severe, bloody diarrhea.
• Ensure documentation specifies "nondysenteric" or describes symptoms consistent with a milder presentation.
• Do not use if the infection is extraintestinal (e.g., amebic liver abscess).