Ileus, unspecified

This code represents a general paralysis or lack of peristalsis in the intestine, leading to a functional obstruction without a physical blockage. It signifies a non-mechanical failure of the bowel to propel its contents forward. This condition often results in symptoms like abdominal distension, pain, nausea, vomiting, and absence of flatus or bowel movements.

Use this code when documentation clearly indicates a diagnosis of ileus without a specified cause or type, and there is no evidence of a mechanical obstruction. This code is appropriate for postoperative ileus, paralytic ileus, or adynamic ileus when the specific etiology is not further detailed. Supporting documentation should describe the clinical presentation consistent with bowel paralysis rather than a physical obstruction.

• Do not use this code if the documentation specifies an obstructive ileus; refer to the Excludes1 note.
• Ensure the documentation differentiates between functional ileus and mechanical intestinal obstruction, especially those related to hernias.
• Always review the medical record for more specific diagnoses of ileus (e.g., postoperative, paralytic) before assigning this unspecified code.