Codes / ICD10CM / K57.21

K57.21 Diverticulitis of large intestine with perforation and abscess with bleeding

ICD10CM code

ICD10CM

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Name of the Condition

  • Diverticulitis of Large Intestine with Perforation and Abscess with Bleeding
  • ICD-10 Code: K57.21

Summary

  • Diverticulitis is a condition where small, bulging pouches (diverticula) in the digestive tract become inflamed or infected. This specific type involves perforation (tear), the presence of an abscess, and bleeding, making it a complex and severe form of diverticulitis.

Causes

  • The exact cause of diverticulitis is unclear, but it often results from a combination of genetic predisposition, dietary habits low in fiber, and increased pressure within the colon, leading to the formation of diverticula, which can become inflamed or infected.

Risk Factors

  • Age (more common in people over 40)
  • Low-fiber diet
  • Sedentary lifestyle
  • Obesity
  • Smoking
  • Certain medications (e.g., NSAIDs, steroids)
  • Family history of diverticulitis.

Symptoms

  • Severe abdominal pain, usually on the lower left side
  • Fever and chills
  • Nausea or vomiting
  • Changes in bowel habits (constipation or diarrhea)
  • Blood in stool or rectal bleeding

Diagnosis

  • Physical examination and medical history
  • Imaging tests like CT scans are crucial for confirming diverticulitis with perforation and abscess.
  • Blood tests to check for infection and inflammation.

Treatment Options

  • Antibiotics to treat infection
  • Pain relievers for symptom management
  • Surgery may be needed to repair a perforation or drain an abscess
  • Temporary dietary adjustments, progressing from liquids to a low-fiber diet, then gradually introducing high-fiber foods.

Prognosis and Follow-Up

  • With prompt treatment, the prognosis can be favorable, but it often requires hospitalization and potential surgery.
  • Regular follow-ups are crucial to monitor recovery and prevent recurrence.
  • Chronic cases may necessitate further intervention or surgery.

Complications

  • Peritonitis (infection of the abdominal lining)
  • Fistula formation
  • Bowel obstruction
  • Sepsis

Lifestyle & Prevention

  • Increasing dietary fiber intake
  • Regular physical activity
  • Adequate hydration
  • Avoiding smoking
  • Managing weight
  • Routine screenings for individuals at high risk

When to Seek Professional Help

  • Intense abdominal pain lasting more than a few hours
  • Noticeable changes in bowel movements or the presence of blood
  • Unexplained fever and chills

Additional Resources

Tips for Medical Coders

  • Ensure thorough documentation to differentiate between uncomplicated and complicated diverticulitis forms.
  • Verify details about the presence of perforation, abscess, or bleeding to assign the correct ICD-10 code.
  • Common error: Misclassification of diverticular disease types, so always confirm clinical findings.

Medical Policies and Guidelines

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