Other congenital functional disorders of colon

This code represents congenital conditions affecting the functional motility or coordination of the colon, excluding Hirschsprung's disease. These disorders involve intrinsic abnormalities in the colonic musculature or innervation that lead to chronic constipation, fecal incontinence, or other bowel dysfunction from birth.

Assign this code for documented congenital functional colonic disorders such as congenital colonic inertia, congenital megacolon (excluding Hirschsprung's), or other specified congenital dysmotility not classified elsewhere. Documentation should clearly indicate a congenital origin and functional impairment of the colon.

• Do not use this code for acquired functional bowel disorders; ensure the documentation specifies a congenital etiology.
• Differentiate carefully from Hirschsprung's disease (Q43.1), which has its own specific code.
• Ensure the medical record specifies "other" congenital functional disorder if a more specific code is not available for the documented condition.