Irritable bowel syndrome with diarrhea

This code signifies a functional gastrointestinal disorder characterized by recurrent abdominal pain or discomfort associated with altered bowel habits, specifically presenting with a predominant pattern of diarrhea. It indicates the presence of chronic or recurrent loose or watery stools, often accompanied by urgency and bloating, without an identifiable organic cause.

This code is appropriate for patients diagnosed with Irritable Bowel Syndrome whose primary bowel symptom is diarrhea. Documentation should clearly indicate IBS and specify the diarrheal subtype, often based on Rome IV criteria or similar diagnostic guidelines. It is used when other causes of diarrhea, such as infection or inflammatory bowel disease, have been ruled out.

• Ensure documentation explicitly states "IBS with diarrhea" or "diarrhea-predominant IBS" (IBS-D).
• Do not use this code if the patient presents with constipation-predominant IBS (IBS-C) or mixed IBS (IBS-M); separate codes exist for these subtypes.
• Confirm that the provider has ruled out other organic causes of diarrhea before assigning this functional disorder code.