Mixed irritable bowel syndrome

📋Clinical Description

This code represents Irritable Bowel Syndrome (IBS) characterized by alternating bowel habits, specifically episodes of both diarrhea and constipation. Patients experience abdominal pain or discomfort associated with these changes in stool frequency or form. It is a functional gastrointestinal disorder without identifiable structural abnormalities.

🎯When to Use

Use this code when documentation clearly indicates a diagnosis of IBS with a mixed bowel habit pattern, often referred to as IBS-M. This diagnosis is typically made based on Rome IV criteria, which include recurrent abdominal pain at least one day per week on average in the last three months, associated with two or more of the following: related to defecation, associated with a change in stool frequency, or associated with a change in stool form.

💡Coding Tips

Ensure the documentation explicitly states "mixed" or "alternating" bowel habits to support this specific subtype of IBS.
Do not code K58.0 (IBS with diarrhea) or K58.1 (IBS with constipation) if the patient exhibits both patterns.
Always review the provider's notes for the specific IBS subtype to ensure accurate coding.

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Code Hierarchy

▲K58Irritable bowel syndrome

K58.2(current)

Same Category

K58Irritable bowel syndrome K58.0Irritable bowel syndrome with diarrhea K58.1Irritable bowel syndrome with constipation K58.8Other irritable bowel syndrome K58.9Irritable bowel syndrome, unspecified