Crohn's disease [regional enteritis] (K50) ICD-10-CM
The K50 code range covers crohn's disease [regional enteritis] with 37 ICD-10-CM diagnosis codes. 28 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- granulomatous enteritis
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code to identify any associated fistulas, if applicable:
- anal fistula K60.3
- anorectal fistula K60.5
- rectal fistula K60.4
- code to identify manifestations, such as:
- pyoderma gangrenosum L88
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- ulcerative colitis K51
Codes in the K50 Range 37 codes · 28 billable
- K50 Crohn's disease [regional enteritis]Non-billable
- K50.0 Crohn's disease of small intestineNon-billable
- K50.00 Crohn's disease of small intestine without complications
- K50.01 Crohn's disease of small intestine with complicationsNon-billable
- K50.011 Crohn's disease of small intestine with rectal bleeding
- K50.012 Crohn's disease of small intestine with intestinal obstruction
- K50.013 Crohn's disease of small intestine with fistula
- K50.014 Crohn's disease of small intestine with abscess
- K50.018 Crohn's disease of small intestine with other complication
- K50.019 Crohn's disease of small intestine with unspecified complications
- K50.1 Crohn's disease of large intestineNon-billable
- K50.10 Crohn's disease of large intestine without complications
- K50.11 Crohn's disease of large intestine with complicationsNon-billable
- K50.111 Crohn's disease of large intestine with rectal bleeding
- K50.112 Crohn's disease of large intestine with intestinal obstruction
- K50.113 Crohn's disease of large intestine with fistula
- K50.114 Crohn's disease of large intestine with abscess
- K50.118 Crohn's disease of large intestine with other complication
- K50.119 Crohn's disease of large intestine with unspecified complications
- K50.8 Crohn's disease of both small and large intestineNon-billable
- K50.80 Crohn's disease of both small and large intestine without complications
- K50.81 Crohn's disease of both small and large intestine with complicationsNon-billable
- K50.811 Crohn's disease of both small and large intestine with rectal bleeding
- K50.812 Crohn's disease of both small and large intestine with intestinal obstruction
- K50.813 Crohn's disease of both small and large intestine with fistula
- K50.814 Crohn's disease of both small and large intestine with abscess
- K50.818 Crohn's disease of both small and large intestine with other complication
- K50.819 Crohn's disease of both small and large intestine with unspecified complications
- K50.9 Crohn's disease, unspecifiedNon-billable
- K50.90 Crohn's disease, unspecified, without complications
- K50.91 Crohn's disease, unspecified, with complicationsNon-billable
- K50.911 Crohn's disease, unspecified, with rectal bleeding
- K50.912 Crohn's disease, unspecified, with intestinal obstruction
- K50.913 Crohn's disease, unspecified, with fistula
- K50.914 Crohn's disease, unspecified, with abscess
- K50.918 Crohn's disease, unspecified, with other complication
- K50.919 Crohn's disease, unspecified, with unspecified complications
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the K50 range.
Crohn Disease
A chronic transmural inflammation that may involve any part of the DIGESTIVE TRACT from MOUTH to ANUS, mostly found in the ILEUM, the CECUM, and the COLON. In Crohn disease, the inflammation, extending through the intestinal wall from the MUCOSA to the serosa, is characteristically asymmetric and segmental. Epithelioid GRANULOMAS may be seen in some patients.
Crohn Disease of Small Intestine
Crohn's disease affecting the small intestine.
About the K50 Code Range
Crohn's disease appears here among noninfective intestinal conditions of the digestive system.
The categories separate disease of the small intestine, large intestine, or both, plus Crohn's disease with no site specified. Within each group, codes distinguish cases without complications from those with complications. Complications are then identified by type, such as rectal bleeding or intestinal obstruction, or labeled other or unspecified.
Questions About This Page
How many billable codes are in the K50 range?
Of the 37 codes in this range, 28 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the K50 range classify?
The range classifies crohn's disease [regional enteritis]. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
