ICD-10 Diagnosis Code K55.21

Angiodysplasia of colon with hemorrhage

Diagnosis Code K55.21

ICD-10: K55.21
Short Description: Angiodysplasia of colon with hemorrhage
Long Description: Angiodysplasia of colon with hemorrhage
This is the 2017 version of the ICD-10-CM diagnosis code K55.21

Code Classification
  • Diseases of the digestive system
    • Other diseases of intestines (K55-K64)
      • Vascular disorders of intestine (K55)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code K55.21 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


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The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Intestinal hemorrhage due to angiodysplasia of intestine

Information for Patients

Colonic Diseases

Also called: Large intestine diseases

Your colon, also known as the large intestine, is part of your digestive system. It's a long, hollow tube at the end of your digestive tract where your body makes and stores stool. Many disorders affect the colon's ability to work properly. Some of these include

  • Colorectal cancer
  • Colonic polyps - extra tissue growing in the colon that can become cancerous
  • Ulcerative colitis - ulcers of the colon and rectum
  • Diverticulitis - inflammation or infection of pouches in the colon
  • Irritable bowel syndrome - an uncomfortable condition causing abdominal cramping and other symptoms

Treatment for colonic diseases varies greatly depending on the disease and its severity. Treatment may involve diet, medicines and in some cases, surgery.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

  • Angiodysplasia of the colon
  • Colitis
  • Colonoscopy
  • Hirschsprung disease
  • Intestinal ischemia and infarction
  • Large bowel resection
  • Lower GI Series - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)

[Read More]

Gastrointestinal Bleeding

Also called: GI bleeding

Your digestive or gastrointestinal (GI) tract includes the esophagus, stomach, small intestine, large intestine or colon, rectum, and anus. Bleeding can come from any of these areas. The amount of bleeding can be so small that only a lab test can find it.

Signs of bleeding in the digestive tract depend where it is and how much bleeding there is.

Signs of bleeding in the upper digestive tract include

  • Bright red blood in vomit
  • Vomit that looks like coffee grounds
  • Black or tarry stool
  • Dark blood mixed with stool

Signs of bleeding in the lower digestive tract include

  • Black or tarry stool
  • Dark blood mixed with stool
  • Stool mixed or coated with bright red blood

GI bleeding is not a disease, but a symptom of a disease. There are many possible causes of GI bleeding, including hemorrhoids, peptic ulcers, tears or inflammation in the esophagus, diverticulosis and diverticulitis, ulcerative colitis and Crohn's disease, colonic polyps, or cancer in the colon, stomach or esophagus.

The test used most often to look for the cause of GI bleeding is called endoscopy. It uses a flexible instrument inserted through the mouth or rectum to view the inside of the GI tract. A type of endoscopy called colonoscopy looks at the large intestine.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

  • Bleeding esophageal varices
  • Bloody or tarry stools
  • Gastrointestinal bleeding
  • Lower GI Series - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)
  • Mallory-Weiss tear
  • Vomiting blood

[Read More]

Vascular Diseases

The vascular system is the body's network of blood vessels. It includes the arteries, veins and capillaries that carry blood to and from the heart. Problems of the vascular system are common and can be serious. Arteries can become thick and stiff, a problem called atherosclerosis. Blood clots can clog vessels and block blood flow to the heart or brain. Weakened blood vessels can burst, causing bleeding inside the body.

You are more likely to have vascular disease as you get older. Other factors that make vascular disease more likely include

  • Family history of vascular or heart diseases
  • Pregnancy
  • Illness or injury
  • Long periods of sitting or standing still
  • Any condition that affects the heart and blood vessels, such as diabetes or high cholesterol
  • Smoking
  • Obesity

Losing weight, eating healthy foods, being active and not smoking can help vascular disease. Other treatments include medicines and surgery.

  • Aortic arch syndrome
  • Arterial embolism
  • Arteriogram
  • Cerebral angiography
  • Duplex ultrasound
  • Venous insufficiency
  • Venous ulcers -- self-care

[Read More]
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