K55.021
Focal (segmental) acute infarction of small intestine
Clinical Classification Guidelines
Medical Intelligence & Overview
Focal segmental acute infarction of the small intestine is a rare but serious medical condition characterized by a sudden loss of blood supply to a specific segment of the small intestine. This interruption of blood flow results in tissue death, which can lead to severe complications if not promptly diagnosed and treated. The condition is classified under ICD-10 code K55.021 and requires immediate medical attention to minimize long-term damage and improve outcomes.
Causes & Symptoms
Clinical Causes: Blood clots that block the arteries supplying the small intestine Emboli originating from the heart or large arteries traveling to the intestinal vessels Atherosclerosis that narrows the blood vessels Injury or trauma to the blood vessels Low blood flow states due to shock or severe dehydration Vasculitis, an inflammation of blood vessels Bowel volvulus or twisting of the intestine obstructing blood flow Surgical complications affecting blood vessel integrity
Key Symptoms: Sudden and severe abdominal pain that may be localized or diffuse Nausea and vomiting, sometimes containing blood Abdominal tenderness and swelling Diarrhea or constipation Signs of shock such as low blood pressure, rapid heartbeat, and pallor Fever in some cases Blood in stool, if the bowel tissue begins to ulcerate or necrotize
Diagnostic & Treatment
Diagnosis Path: Physical examination to assess abdominal tenderness and signs of systemic illness Blood tests to look for signs of infection, inflammation, or tissue damage Imaging procedures such as abdominal ultrasound, CT scan, or angiography to visualize blood flow and identify ischemic segments Endoscopy may be performed in some cases to directly observe the intestinal mucosa Lactate levels in the blood, which can indicate tissue hypoxia
Treatment Protocols: Emergency surgical intervention to remove necrotic tissue and possibly restore blood flow Endovascular procedures such as thrombectomy or angioplasty in suitable cases Supportive care including fluid resuscitation, oxygen therapy, and pain management Anticoagulant or thrombolytic therapy to dissolve blood clots Addressing underlying causes, like managing cardiovascular risk factors or vasculitis Monitoring for signs of bowel perforation, infection, or sepsis
Clinical Advice & FAQs
Billing Guidance
Is K55.021 a billable ICD-10 code?
Yes, K55.021 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report K55.021?
Clinical documentation must specify the nature of Focal (segmental) acute infarction of small intestine and any associated comorbidities for accurate reporting.
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