Ulcerative (chronic) rectosigmoiditis with fistula
ICD-10 K51.313 is a billable code used to indicate a diagnosis of ulcerative (chronic) rectosigmoiditis with fistula.
K51.313 refers to ulcerative (chronic) rectosigmoiditis with fistula, a condition characterized by inflammation and ulceration of the rectum and sigmoid colon, often leading to the formation of abnormal connections (fistulas) between the bowel and other structures. Clinically, patients may present with symptoms such as rectal bleeding, diarrhea (often bloody), abdominal pain, and urgency to defecate. The anatomy involved includes the rectum and sigmoid colon, which are parts of the lower gastrointestinal tract. Disease progression can vary, with some patients experiencing intermittent flares of symptoms while others may have a more chronic course. Diagnostic considerations include colonoscopy, which allows for direct visualization of the mucosa and biopsy of affected areas, as well as imaging studies to assess for fistula formation. Laboratory tests may also be performed to evaluate for anemia or infection. Management typically involves medical therapy, including anti-inflammatory medications and immunosuppressants, and may require surgical intervention if complications arise.
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
K51.313 specifically covers chronic ulcerative rectosigmoiditis with the presence of a fistula. This includes cases where the ulcerative process has led to the formation of a fistula, which can connect the rectum to the vagina, bladder, or other structures.
K51.313 should be used when there is clear documentation of chronic ulcerative rectosigmoiditis accompanied by a fistula. If the condition is acute or without fistula, other codes such as K51.309 (Ulcerative colitis, unspecified, with other complications) may be more appropriate.
Documentation should include a confirmed diagnosis of chronic ulcerative rectosigmoiditis, evidence of fistula formation through imaging or surgical findings, and a detailed account of symptoms and treatment plans. Colonoscopy reports and pathology results are also essential.
