Other obstruction of duodenum

This code signifies a partial or complete blockage within the duodenum, the first section of the small intestine, that is not congenital or due to gallstones. It encompasses various acquired causes of duodenal lumen narrowing or occlusion, impeding the normal passage of chyme.

Use this code for documented cases of acquired duodenal obstruction, such as those caused by adhesions, strictures from inflammatory conditions (e.g., Crohn's disease), tumors extrinsic to the duodenum, or internal foreign bodies. Documentation should clearly state "obstruction of duodenum" and exclude congenital anomalies or gallstone etiology.

• Differentiate from congenital duodenal obstruction (751.1) and gallstone ileus (560.31).
• Always look for the underlying cause of the obstruction; if identified, code it as a primary diagnosis if it meets the definition of the principal diagnosis.
• Ensure documentation specifies the duodenum as the site of obstruction, as other intestinal obstructions have different codes.