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K58.2

Billable

Mixed irritable bowel syndrome

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Irritable bowel syndrome with alternating symptoms of both constipation and diarrhea, causing abdominal discomfort and irregular bowel patterns.

Coding Tips

  • •Document the presence of both constipation and diarrhea symptoms to justify this code over K58.1 or K58.0
  • •This is the most common IBS presentation; ensure symptoms are documented as alternating rather than simultaneous

Code Hierarchy

└K58Irritable bowel syndrome└K58.2Mixed irritable bowel syndrome
└K58.2Mixed irritable bowel syndrome

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