596.1
ICD-9-CMThis code represents an abnormal communication or passage that forms between the intestine and the urinary bladder. This connection allows intestinal contents to enter the bladder, leading to various urinary and gastrointestinal symptoms. It is a type of internal fistula involving two distinct organ systems.
Use this code when documentation clearly indicates the presence of an abnormal connection between any part of the intestine (e.g., small bowel, colon) and the urinary bladder. This diagnosis is typically supported by imaging studies such as cystography, barium enema, CT scans, or endoscopy, along with clinical signs like pneumaturia, fecaluria, or recurrent urinary tract infections.
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