Chronic vascular disorders of intestine

This code represents long-standing conditions affecting the blood vessels supplying the intestines, leading to insufficient blood flow (ischemia). This chronic ischemia can result in abdominal pain, weight loss, and malabsorption due to compromised intestinal function. It encompasses conditions like chronic mesenteric ischemia or ischemic colitis that persist over time.

Use this code for patients diagnosed with chronic mesenteric ischemia, chronic ischemic colitis, or other persistent vascular insufficiencies affecting the bowel. Documentation should clearly indicate the chronicity of the condition and evidence of vascular compromise, such as angiography findings, CT scans, or endoscopic reports showing ischemic changes.

• Differentiate from acute mesenteric ischemia (K55.0-) which has a different clinical presentation and coding.
• Ensure documentation specifies "chronic" to support the use of this code; otherwise, an acute or unspecified code may be more appropriate.
• Code any associated complications, such as intestinal strictures or perforation, separately.