K51.31 Ulcerative (chronic) rectosigmoiditis with complications

Non-billable header with 6 child codes.

Applies from K51 Ulcerative colitis

Excludes1 (never code together)

• Crohn's disease [regional enteritis] (K50.-)

Use additional code

• code to identify any associated fistulas, if applicable:
• anal fistula (K60.3-)
• anorectal fistula (K60.5-)
• rectal fistula (K60.4-)
• code to identify manifestations, such as:
• pyoderma gangrenosum (L88)

Codes under K51.31

• K51.311 Ulcerative (chronic) rectosigmoiditis with rectal bleeding
• K51.312 Ulcerative (chronic) rectosigmoiditis with intestinal obstruction
• K51.313 Ulcerative (chronic) rectosigmoiditis with fistula
• K51.314 Ulcerative (chronic) rectosigmoiditis with abscess
• K51.318 Ulcerative (chronic) rectosigmoiditis with other complication
• K51.319 Ulcerative (chronic) rectosigmoiditis with unspecified complications

Code annotations containing back-references to K51.31

Back-references to K51

• Code First: F54 Psychological and behavioral factors associated with disorders or diseases classified elsewhere ("ulcerative colitis (K51.-)")
• Type 1 Excludes: K50 Crohn's disease [regional enteritis] ("ulcerative colitis (K51.-)")
• Code First: K60.3 Anal fistula ("ulcerative colitis (K51.-)")
• Code First: K60.4 Rectal fistula ("ulcerative colitis (K51.-)")
• Code First: K60.5 Anorectal fistula ("ulcerative colitis (K51.-)")
• Type 1 Excludes: K62.6 Ulcer of anus and rectum ("ulcerative colitis (K51.-)")
• Type 1 Excludes: K63.3 Ulcer of intestine ("ulcerative colitis (K51.-)")
• Code Also: M07 Enteropathic arthropathies ("ulcerative colitis (K51.-)")
• Code Also: M08 Juvenile arthritis ("ulcerative colitis (K51.-)")

Nearby codes

• K51.214 Ulcerative (chronic) proctitis with abscess
• K51.218 Ulcerative (chronic) proctitis with other complication
• K51.219 Ulcerative (chronic) proctitis with unspecified complications
• K51.3 Ulcerative (chronic) rectosigmoiditis
• K51.30 Ulcerative (chronic) rectosigmoiditis without complications
• K51.31 Ulcerative (chronic) rectosigmoiditis with complications (this code)
• K51.311 Ulcerative (chronic) rectosigmoiditis with rectal bleeding
• K51.312 Ulcerative (chronic) rectosigmoiditis with intestinal obstruction
• K51.313 Ulcerative (chronic) rectosigmoiditis with fistula
• K51.314 Ulcerative (chronic) rectosigmoiditis with abscess
• K51.318 Ulcerative (chronic) rectosigmoiditis with other complication