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K58.9

Billable

Irritable bowel syndrome, unspecified

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

What This Code Means

Irritable bowel syndrome without specification of whether constipation, diarrhea, or mixed symptoms predominate.

Coding Tips

  • This is a less specific code; attempt to determine the predominant symptom pattern and use K58.0, K58.1, or K58.2 when possible
  • Use only when documentation is insufficient to specify the IBS subtype

Code Hierarchy

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