Chronic vascular insufficiency of intestine

This code describes a long-standing reduction in blood flow to the intestines, leading to ischemic changes. This insufficiency can result from narrowing or blockage of the mesenteric arteries, impairing the delivery of oxygen and nutrients necessary for normal bowel function. Patients often experience chronic abdominal pain, weight loss, and malabsorption.

Use this code for patients diagnosed with chronic mesenteric ischemia, typically evidenced by symptoms such as postprandial abdominal pain, fear of eating (sitophobia), and unexplained weight loss. Documentation should clearly indicate a chronic nature of the vascular compromise, often supported by imaging studies like mesenteric angiography showing arterial stenosis or occlusion.

• Differentiate from acute mesenteric ischemia, which has a distinct code and often presents with more severe, sudden onset symptoms.
• Ensure documentation specifies "chronic" to support the use of this code; otherwise, an unspecified or acute code may be more appropriate.
• Consider co-morbidities such as atherosclerosis or other vascular diseases, which may also require separate coding.