K58 Irritable bowel syndrome

Category / Non-billable header 5 subcodes

Block: Other diseases of intestines (K55-K64)

Includes

  • irritable colon
  • spastic colon

Subcodes

Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.

Code Description Billable
K58..0 Irritable bowel syndrome with diarrhea Yes
K58..1 Irritable bowel syndrome with constipation Yes
K58..2 Mixed irritable bowel syndrome Yes
K58..8 Other irritable bowel syndrome Yes
K58..9 Irritable bowel syndrome, unspecified Yes

Last reviewed: September 2026