Current
K59 — Other functional intestinal disorders
Part of Chapter 11: Diseases of the digestive system , block Other diseases of intestines (K55-K64) .
Official Notes
Child Codes
- K59.0 Constipation Has subcodes
- K59.1 Functional diarrhea Billable
- K59.2 Neurogenic bowel, not elsewhere classified Billable
- K59.3 Megacolon, not elsewhere classified Has subcodes
- K59.4 Anal spasm Billable
- K59.8 Other specified functional intestinal disorders Has subcodes
- K59.9 Functional intestinal disorder, unspecified Billable
FY 2027 effective October 1, 2026 · CDC NCHS and CMS