K50.819 - Crohn's disease of both small and large intestine with unspecified complications

Version 2023
ICD-10:K50.819
Short Description:Crohn's disease of both small and lg int w unsp comp
Long Description:Crohn's disease of both small and large intestine with unspecified complications
Status: Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Diseases of the digestive system (K00–K93)
    • Noninfective enteritis and colitis (K50-K52)
      • Crohn's disease [regional enteritis] (K50)

K50.819 is a billable ICD-10 code used to specify a medical diagnosis of crohn's disease of both small and large intestine with unspecified complications. The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.

Unspecified diagnosis codes like K50.819 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Index to Diseases and Injuries References

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for this diagnosis code are found in the injuries and diseases index:

Convert to ICD-9 Code

Source ICD-10 CodeTarget ICD-9 Code
K50.819555.2 - Reg enterit sm/lg intest
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Crohn's Disease

What is Crohn's disease?

Crohn's disease is a chronic disease that causes inflammation in your digestive tract. It can affect any part of your digestive tract, which runs from your mouth to your anus. But it usually affects your small intestine and the beginning of your large intestine.

Crohn's disease is an inflammatory bowel disease (IBD). Ulcerative colitis and microscopic colitis are other common types of IBD.

What causes Crohn's disease?

The cause of Crohn's disease is unknown. Researchers think that an autoimmune reaction may be one cause. An autoimmune reaction happens when your immune system attacks healthy cells in your body. Genetics may also play a role, since Crohn's disease can run in families.

Stress and eating certain foods don't cause the disease, but they can make your symptoms worse.

Who is at risk for Crohn's disease?

There are certain factors which can raise your risk of Crohn's disease:

What are the symptoms of Crohn's disease?

The symptoms of Crohn's disease can vary, depending where and how severe your inflammation is. The most common symptoms include:

Some other possible symptoms are:

Stress and eating certain foods such as carbonated drinks and high-fiber foods may make some people's symptoms worse.

What other problems can Crohn's disease cause?

Crohn's disease can cause other problems, including:

How is Crohn's disease diagnosed?

Your health care provider may use many tools to make a diagnosis:

What are the treatments for Crohn's disease?

There is no cure for Crohn's disease, but treatments can decrease the inflammation in your intestines, relieve symptoms, and prevent complications. Treatments include medicines, bowel rest, and surgery. No single treatment works for everyone. You and your health care provider can work together to figure out which treatment is best for you:

Changing your diet can help reduce symptoms. Your provider may recommend that you make changes to your diet, such as:

Some people also need go on special diet, such as a low-fiber diet.

National Institute of Diabetes and Digestive and Kidney Diseases


[Learn More in MedlinePlus]

Crohn disease

Crohn disease is a complex, long-lasting (chronic) disorder that primarily affects the digestive system. This condition involves an abnormal immune response that causes excess inflammation. It most often affects the intestinal walls, particularly in the lower part of the small intestine (the ileum) and portions of the large intestine (the colon). However, inflammation can occur in any part of the digestive system, from the mouth to the anus. The inflamed tissues become thick and swollen, and the inner surfaces of the digestive system may develop open sores (ulcers).

Crohn disease most commonly appears in a person's late teens or twenties, although the disease can begin at any age. Signs and symptoms tend to flare up multiple times throughout life. The most common features of this condition are persistent diarrhea, abdominal pain and cramping, loss of appetite, weight loss, and fever. Some people with Crohn disease have blood in the stool from inflamed tissues in the intestine; over time, chronic bleeding can lead to a low number of red blood cells (anemia). In some cases, Crohn disease can also cause inflammation affecting the joints, eyes, or skin.

Intestinal blockage is a common complication of Crohn disease. Blockages are caused by swelling or a buildup of scar tissue in the intestinal walls. Some affected individuals also develop fistulae, which are abnormal connections between the intestine and other tissues. Fistulae occur when ulcers break through the intestinal wall and passages form between loops of the intestine or between the intestine and nearby structures (such as the bladder, vagina, or skin).

Crohn disease is one common form of inflammatory bowel disease (IBD). Another type of IBD, ulcerative colitis, also causes chronic inflammation of the intestinal lining. Unlike Crohn disease, which can affect any part of the digestive system, ulcerative colitis typically causes inflammation only in the colon.


[Learn More in MedlinePlus]

Crohn's Disease

Discusses risk factors, symptoms, diagnostic procedures, and complications of Crohn's disease. Provides treatment options, including medications and surgery.
[Learn More in MedlinePlus]

Code History