Title: 2021 ICD-10-CM Code K50.813 - Crohn's disease of both small and large intestine with fistula
Headings: 2021 ICD-10-CM Code K50.813
2021 ICD-10-CM Code K50.813
Crohn's disease of both small and large intestine with fistula
Valid for Submission
Code Classification
Index to Diseases and Injuries
Approximate Synonyms
Convert K50.813 to ICD-9 Code
Information for Patients
Code History

Content: The following references for the code K50.813 are found in the index: - Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) - K52.9
- regional (of) - K50.90
- large intestine (colon) (rectum) - K50.10
- with
- complication - K50.119
- small intestine (duodenum) (ileum) (jejunum) involvement - K50.80
- with
- complication - K50.819
- fistula - K50.813
- small intestine (duodenum) (ileum) (jejunum) - K50.00
- with
- complication - K50.019
- large intestine (colon) (rectum) involvement - K50.80
- with
- complication - K50.819
- fistula - K50.813
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code: Complication due to Crohn's disease of large intestine
Complication due to Crohn's disease of small and large intestines
Complication due to Crohn's disease of small intestine
Fistula of intestine due to Crohn's disease of small and large intestine
Convert K50.813 to ICD-9 Code
555.2 - Reg enterit sm/lg intest (Combination Flag)
569.81 - Intestinal fistula (Combination Flag)
Information for Patients
Crohn's Disease
Also called: Regional enteritis, Regional ileitis
Crohn's disease causes inflammation of the digestive system. It is one of a group of diseases called inflammatory bowel disease. Crohn's can affect any area from the mouth to the anus. It often affects the lower part of the small intestine called the ileum. The cause of Crohn's disease is unknown. It may be due to an abnormal reaction by the body's immune system. It also seems to run in some families.