K51.3 Ulcerative (chronic) rectosigmoiditisNon-billable header with 2 child codes.
K51.30 Ulcerative (chronic) rectosigmoiditis without complicationsK51.31 Ulcerative (chronic) rectosigmoiditis with complicationsF54 Psychological and behavioral factors associated with disorders or diseases classified elsewhere ("ulcerative colitis (K51.-)")K50 Crohn's disease [regional enteritis] ("ulcerative colitis (K51.-)")K60.3 Anal fistula ("ulcerative colitis (K51.-)")K60.4 Rectal fistula ("ulcerative colitis (K51.-)")K60.5 Anorectal fistula ("ulcerative colitis (K51.-)")K62.6 Ulcer of anus and rectum ("ulcerative colitis (K51.-)")K63.3 Ulcer of intestine ("ulcerative colitis (K51.-)")M07 Enteropathic arthropathies ("ulcerative colitis (K51.-)")M08 Juvenile arthritis ("ulcerative colitis (K51.-)")K51.212 Ulcerative (chronic) proctitis with intestinal obstructionK51.213 Ulcerative (chronic) proctitis with fistulaK51.214 Ulcerative (chronic) proctitis with abscessK51.218 Ulcerative (chronic) proctitis with other complicationK51.219 Ulcerative (chronic) proctitis with unspecified complicationsK51.3 Ulcerative (chronic) rectosigmoiditis (this code)K51.30 Ulcerative (chronic) rectosigmoiditis without complicationsK51.31 Ulcerative (chronic) rectosigmoiditis with complicationsK51.311 Ulcerative (chronic) rectosigmoiditis with rectal bleedingK51.312 Ulcerative (chronic) rectosigmoiditis with intestinal obstructionK51.313 Ulcerative (chronic) rectosigmoiditis with fistula