K50-K52

Noninfective enteritis and colitis

Block coding notes

Excludes 1 never together · Excludes 2 may co-exist

Includes

noninfective inflammatory bowel disease

Excludes 1

irritable bowel syndrome (K58.-) megacolon (K59.3-)

Codes in this block

119 codes

Billableusable codeNon-billableheader / grouping codeRisk-adjusting

Official Guidelines for K50-K52

FY 2026 ›