ICD-10-CM>K00-K95>K55-K64>K58K58Irritable bowel syndromeNon-Billable/Non-SpecificIncludesirritable colonspastic colonCodesK58.0Irritable bowel syndrome with diarrheaK58.1Irritable bowel syndrome with constipationK58.2Mixed irritable bowel syndromeK58.8Other irritable bowel syndromeK58.9Irritable bowel syndrome, unspecified