Rectal fistula

**Inclusion terms:** - Fistula of rectum to skin

**Excludes1:** - congenital fistula (Q43.6) - rectovaginal fistula (N82.3) - vesicorectal fistual (N32.1)

**Code first:** - , if applicable: - Crohn's disease (K50.-) - ulcerative colitis (K51.-)