Category K59
Other functional intestinal disorders
Clinical Classification Guidelines
Specific Diagnosis Codes
Constipation
K59.0
Constipation, unspecified
K59.00
Slow transit constipation
K59.01
Outlet dysfunction constipation
K59.02
Drug induced constipation
K59.03
Chronic idiopathic constipation
K59.04
Other constipation
K59.09
Functional diarrhea
K59.1
Neurogenic bowel, not elsewhere classified
K59.2
Megacolon, not elsewhere classified
K59.3
Toxic megacolon
K59.31
Other megacolon
K59.39
Anal spasm
K59.4
Other specified functional intestinal disorders
K59.8
Ogilvie syndrome
K59.81
Other specified functional intestinal disorders
K59.89
Functional intestinal disorder, unspecified
K59.9
