K50.1
ICD-10Non-billable categoryCrohn's disease of large intestine
Official ICD-10-CM descriptor (FY2026)
Crohn's disease of large intestine
K50.1 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- Crohn's disease [regional enteritis] of colon
- Crohn's disease [regional enteritis] of large bowel
- Crohn's disease [regional enteritis] of rectum
- Granulomatous colitis
- Regional colitis
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- Crohn's disease of both small and large intestine (K50.8)
ICD-10-CM FY2026 defines 2 codes beneath K50.1. See the ICD-10-CM index for what this site publishes.
Related codes in K50
Where this code sits
- Parent code
- K50
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.