Outlet dysfunction constipation

This code signifies constipation resulting from impaired defecation due to functional or structural abnormalities of the pelvic floor or anal sphincter. It encompasses conditions like anismus, rectocele, or intussusception that obstruct the normal passage of stool from the rectum. Patients typically experience straining, incomplete evacuation, and a need for manual maneuvers to defecate.

Use this code when documentation explicitly states "outlet dysfunction constipation" or describes symptoms and diagnostic findings consistent with impaired defecatory function. This often follows anorectal manometry, defecography, or balloon expulsion tests confirming a pelvic floor disorder contributing to constipation. It is appropriate when other causes of constipation, such as slow transit or irritable bowel syndrome, have been ruled out or are not the primary cause.

• Differentiate from other types of constipation (e.g., K59.00, K59.01, K59.09) based on the etiology documented.
• Look for specific anatomical or functional diagnoses (e.g., anismus, rectocele) that fall under the umbrella of outlet dysfunction.
• Ensure documentation supports the "outlet dysfunction" component, not just general constipation.