2024 ICD-10-CM Diagnosis Code K55.8

Approximate Synonyms

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

• Acquired telangiectasia of small and large intestines
• Acute GIT vascular insufficiency
• Acute intestinal ischemia due to obstruction of vasculature of intestine
• Acute ischemic colitis
• Acute vascular insufficiency of intestine
• Angiodysplasia of gastrointestinal tract
• Angiodysplasia of gastrointestinal tract
• Angiodysplasia of intestine
• Angiodysplasia of small intestine
• Disorder of vascular structure of duodenum
• Gastrointestinal tract vascular insufficiency
• Increased vascular pattern of colon
• Insufficiency of mesenteric artery
• Ischemic colitis
• Megaduodenum
• Nongangrenous ischemic colitis
• Superior mesenteric artery syndrome
• Transient ischemic colitis
• Vascular disorder of large intestine
• Vascular ectasia of duodenum
• Vascular ectasia of small intestine
• Vascular insufficiency of intestine

Clinical Information

• Superior Mesenteric Artery Syndrome

  duodenal obstruction by the superior mesenteric artery (mesenteric artery, superior) which travels in the root of the mesentery and crosses over the duodenum. the syndrome is characterized by the dilated proximal duodenum and stomach, bloating, abdominal cramps, and vomiting. often it is observed in patient with body casts after spinal surgery.

• Superior Mesenteric Artery Syndrome

  a very rare syndrome characterized by compression of the third portion of the duodenum against the aorta. the compression is caused by the superior mesenteric artery. it results in complete or partial duodenal obstruction. signs and symptoms include nausea, vomiting, abdominal pain and distention, failure to gain weight, and weight loss.

K55.8 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

MS-DRG	MS-DRG Title	MCD	Relative Weight
393	OTHER DIGESTIVE SYSTEM DIAGNOSES WITH MCC	06	1.6196
394	OTHER DIGESTIVE SYSTEM DIAGNOSES WITH CC	06	0.9369
395	OTHER DIGESTIVE SYSTEM DIAGNOSES WITHOUT CC/MCC	06	0.6475

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Convert K55.8 to ICD-9-CM

• ICD-9-CM Code: 557.9 - Vasc insuff intest NOS
  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

Digestive Diseases

When you eat, your body breaks food down to a form it can use to build and nourish cells and provide energy. This process is called digestion.

Your digestive system is a series of hollow organs joined in a long, twisting tube. It runs from your mouth to your anus and includes your esophagus, stomach, and small and large intestines. Your liver, gallbladder and pancreas are also involved. They produce juices to help digestion.

There are many types of digestive disorders. The symptoms vary widely depending on the problem. In general, you should see your doctor if you have:

• Blood in your stool
• Changes in bowel habits
• Severe abdominal pain
• Unintentional weight loss
• Heartburn not relieved by antacids

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

[Learn More in MedlinePlus]

Code History

• FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
• FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
• FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
• FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
• FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
• FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
• FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
• FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
• FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.