K80.18 Calculus of gallbladder with other cholecystitis without obstruction

Name of the Condition

• Calculus of gallbladder with other cholecystitis without obstruction

Summary

Calculus of the gallbladder with other cholecystitis without obstruction refers to the presence of gallstones in the gallbladder accompanied by inflammation of the gallbladder lining that is not classified as acute or chronic, without blocking bile flow. This condition occurs when gallstones cause irritation or partial obstruction, leading to subacute or non-specific inflammation. Symptoms may include mild to moderate abdominal pain, nausea, or bloating, and diagnosis typically relies on imaging and clinical evaluation.

Causes

Gallstones form due to imbalances in bile composition, such as excess cholesterol or bilirubin. When these stones irritate the gallbladder wall or partially obstruct bile flow, they can trigger inflammation. Bacterial infection or prolonged irritation may contribute to the development of cholecystitis that is not acute or chronic in nature.

Risk Factors

• Female gender, especially during reproductive years.
• Obesity or rapid weight loss.
• Family history of gallstones.
• High-fat or low-fiber diet.
• Certain medical conditions, such as diabetes or cirrhosis.
• Age over 40.

Symptoms

• Mild to moderate upper right abdominal pain, often intermittent.
• Nausea, vomiting, or loss of appetite.
• Bloating or indigestion after meals.
• Tenderness in the abdomen, particularly when touching the right upper quadrant.
• Low-grade fever (occasionally).

Diagnosis

Diagnosis typically involves imaging studies such as ultrasound to detect gallstones and assess gallbladder inflammation. Clinical evaluation, including patient history and physical examination, helps confirm the presence of symptoms consistent with cholecystitis. Blood tests may be used to check for signs of infection or inflammation, though imaging remains the primary diagnostic tool.

Treatment Options

Treatment may include pain management and dietary modifications to reduce gallbladder irritation. In some cases, medications to dissolve gallstones or manage inflammation may be considered. If symptoms persist or complications arise, surgical removal of the gallbladder (cholecystectomy) may be recommended.

Prognosis and Follow-Up

Prognosis is generally favorable with appropriate treatment, especially if the condition is managed before complications develop. Follow-up care may involve monitoring for recurrent symptoms or gallstone formation. Patients who undergo cholecystectomy typically have a good long-term outlook, though dietary adjustments may be necessary.

Complications

Potential complications include progression to acute cholecystitis, gallstone pancreatitis, or bile duct obstruction. In rare cases, untreated inflammation may lead to gallbladder perforation or infection. Early diagnosis and treatment reduce the risk of these complications.

Lifestyle & Prevention

Maintaining a healthy weight and balanced diet low in saturated fats may help reduce gallstone risk. Regular physical activity and gradual weight loss (if needed) can also support gallbladder health. Avoiding rapid weight loss and limiting high-fat meals may minimize irritation.

When to Seek Professional Help

Seek medical attention if you experience severe or persistent abdominal pain, jaundice, fever, or unexplained weight loss. These symptoms may indicate a more serious condition requiring prompt evaluation.

Tips for Medical Coders

Document the presence of gallstones, the type of cholecystitis (other, non-acute/non-chronic), and the absence of obstruction. Ensure clinical notes support the diagnosis and specify any relevant imaging or laboratory findings. Code K80.18 is appropriate when gallstones are present with cholecystitis that does not meet acute or chronic criteria and without bile duct obstruction.