Chronic duodenal ileus

This code describes a persistent or long-standing obstruction of the duodenum, the first part of the small intestine, due to impaired motility rather than a mechanical blockage. This condition results in a functional obstruction, preventing the normal passage of food and digestive contents. Patients typically experience chronic symptoms such as nausea, vomiting, abdominal pain, and early satiety.

This code is appropriate for documenting a diagnosis of chronic duodenal ileus, often identified through imaging studies (e.g., upper GI series, CT scan) showing duodenal dilation and delayed emptying in the absence of an anatomical obstruction. Documentation should clearly indicate the chronicity of the condition and differentiate it from acute or mechanical causes of obstruction.

• Ensure documentation specifies "chronic" to differentiate from acute duodenal ileus.
• Distinguish this functional obstruction from mechanical obstructions of the duodenum, which would be coded differently.
• Look for supporting documentation of impaired duodenal motility or functional obstruction in physician notes and radiology reports.