AHA Coding Clinic® for ICD-9 - 1988 First Quarter

Intestinal Pseudo-Obstruction

Intestinal pseudo-obstruction is a motility disorder characterized by distention or dilatation of the small and/or large intestine. The underlying cause is not a mechanical obstruction of the intestine but rather a severe dysmotility of the intestine. Note: As of October 1, 1998, pseudo-obstruction of the intestine specified as chronic, intermittent secondary, idiopathic or primary, and not otherwise specified is coded to 564.89. Pseudo-obstruction of the intestine described as chronic or intermittent secondary, idiopathic or primary, and not otherwise specified (NOS) is assigned to code 564.8, Other specified functional disorders of intestine. Acute pseudo-obstruction of the intestine, also...

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