K59.8 Other specified functional intestinal disordersNon-billable header with 2 child codes.
564.89 Other functional disorders of intestineK59.2 Neurogenic bowel, not elsewhere classifiedK59.3 Megacolon, not elsewhere classifiedK59.31 Toxic megacolonK59.39 Other megacolonK59.4 Anal spasmK59.8 Other specified functional intestinal disorders (this code)K59.81 Ogilvie syndromeK59.89 Other specified functional intestinal disordersK59.9 Functional intestinal disorder, unspecified