K58 Irritable bowel syndromeNon-billable header with 5 child codes.
K58.0 Irritable bowel syndrome with diarrheaK58.1 Irritable bowel syndrome with constipationK58.2 Mixed irritable bowel syndromeK58.8 Other irritable bowel syndromeK58.9 Irritable bowel syndrome, unspecifiedF54 Psychological and behavioral factors associated with disorders or diseases classified elsewhere ("mucous colitis (K58.-)")F54 Psychological and behavioral factors associated with disorders or diseases classified elsewhere ("mucous colitis (K58.-)")