A computed tomography (CT) scan showing detailed images of the colon and surrounding areas, aiding in the diagnosis of diverticulitis.

Diverticulitis ICD 10 Code: Understanding and Managing

Icd 10 code for diverticulitis is a common digestive condition that occurs when small pouches, known as diverticula, form in the walls of the digestive tract and become inflamed or infected. This condition can lead to a range of symptoms, from mild discomfort to severe complications. In the medical field, accurate coding is crucial for proper diagnosis, treatment, and reimbursement. The International Classification of Diseases, 10th Edition (ICD-10), provides specific codes for various health conditions, including diverticulitis.

What is Diverticulitis?

Diverticulitis is a condition that primarily affects the large intestine or colon. Diverticula, small bulging pouches, can develop in weak areas of the intestinal walls, often in the lower part of the colon. Diverticulitis results from inflammation or infection of these pouches. The exact cause of diverticulitis is not always clear, but it is commonly associated with factors such as aging, a low-fiber diet, obesity, and lack of exercise.

Symptoms of Diverticulitis

The symptoms of diverticulitis can vary in severity, and some individuals may not experience any symptoms at all. Common signs and symptoms include:

  1. Abdominal Pain:
    • Usually occurs on the left side of the lower abdomen.
    • Varies from little cramps to excruciating agony.
  2. Fever and Chills:
    • Fever and chills can be brought on by inflammation or an illness.
  3. Changes in Bowel Habits:
    • Constipation or diarrhea may occur.
  4. Nausea and Vomiting:
    • Severe instances may result in nausea and vomiting.

Diagnosis of Diverticulitis

Diagnosing diverticulitis involves a combination of medical history, physical examination, and diagnostic tests. Common diagnostic tools include:

  1. Computed Tomography (CT) Scan:
    • Provides detailed images of the colon and surrounding areas, helping to identify inflamed or infected diverticula.
  2. Blood Tests:
    • A high white blood cell count might be a sign of an illness.
  3. Colonoscopy:
    • Allows for a direct examination of the colon.

ICD 10 Code for Diverticulitis

ICD 10 code for Diverticulitis are alphanumeric codes used by healthcare providers to classify and code various health conditions. For diverticulitis, the primary codes are:

  1. K57.30 – Diverticulitis of large intestine without perforation or abscess without bleeding:
    • This code is used when diverticulitis is present without complications.
  2. K57.32 – Diverticulitis of large intestine without perforation or abscess with bleeding:
    • Applied when diverticulitis without complications includes bleeding.
  3. K57.90 – Diverticulitis of large intestine, unspecified:
    • Used when the specific details about the diverticulitis are not available.

Treatment and Management

The treatment for diverticulitis depends on the severity of symptoms and potential complications. Mild cases may be managed with rest, a clear liquid diet, and antibiotics. Severe cases with complications such as abscess formation or perforation may require hospitalization, intravenous antibiotics, and, in some cases, surgery.

Preventive Measures

Preventing diverticulitis often involves lifestyle modifications:

  1. Dietary Changes:
    • Increasing fiber intake to promote regular bowel movements and prevent the formation of diverticula.
  2. Hydration:
    • Drinking an adequate amount of water to maintain bowel regularity.
  3. Exercise:
    • Regular physical activity supports overall colon health.

Complications of Diverticulitis

If left untreated or poorly managed, diverticulitis can lead to complications such as:

  1. Abscess Formation:
    • Collection of pus in the pouches.
  2. Perforation:
    • Rupture of the diverticulum, leading to infection in the abdominal cavity.
  3. Fistula Formation:
    • Abnormal connections between the colon and other organs.


Diverticulitis is a prevalent condition that can significantly impact an individual’s quality of life. Timely diagnosis and appropriate treatment are essential for managing symptoms and preventing complications. The accurate use of ICD 10 codes in medical documentation ensures effective communication among healthcare professionals, facilitating better patient care and appropriate reimbursement for healthcare services provided. As our understanding of diverticulitis continues to evolve, ongoing research and advancements in medical practice will further refine diagnostic and treatment approaches for this common digestive disorder.

Wasiur Rehman is fueled by a deep passion for advancing innovation in healthcare and medical research. He possesses a Bachelor's degree in Computer Science Engineering and has dedicated approximately two years to his role as a research analyst and SEO content writer. Currently, he is a valuable member of the DiseaseInfoHub team, serving as a content and research guide.

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