Acute Calculous Cholecystitis
Understanding Acute Calculous Cholecystitis, also known as Gallbladder Inflammation with Stones or Acute Gallstone Cholecystitis, is crucial for accurate clinical documentation and medical coding. This page provides information on diagnosis, symptoms, and treatment of Acute Calculous Cholecystitis, supporting healthcare professionals in proper coding and documentation practices. Learn about the latest guidelines for managing Gallbladder Inflammation with Stones and Acute Gallstone Cholecystitis to ensure optimal patient care.
Sudden inflammation of the gallbladder due to gallstones.
Right upper abdominal pain, fever, nausea, vomiting, tenderness.
Emergency room, hospital admission, surgical consultation.
ICD-10 Code Families
Complete code families applicable to K80.00
When to use each related code
| Description | When to use |
|---|---|
| Gallbladder inflammation with stones | Acute onset right upper quadrant pain, fever, nausea, positive Murphy's sign, gallstones present. Code first if cholecystitis is caused by gallstones. |
| Gallbladder inflammation without stones | Acute onset right upper quadrant pain, fever, nausea, positive Murphy's sign, no gallstones present. Acalculous cholecystitis. |
| Chronic gallbladder inflammation | Recurrent biliary colic, history of gallstones or cholecystitis, thickening of gallbladder wall. Use for long-standing or repeated episodes. |
Best-practice checklist
- ✓Document Murphy's sign presence/absence.
- ✓Specify gallstone location (cystic duct, common bile duct).
- ✓Describe ultrasound findings: wall thickness, stones.
- ✓Record patient's pain level and characteristics.
- ✓Note any labs indicative of cholecystitis (e.g., WBC).
Common pitfalls to avoid
Coding acute cholecystitis without specifying the calculous nature can lead to lower reimbursement and inaccurate reporting. Use K80.00.
Overlapping symptoms with biliary dyskinesia (K83.8) can result in incorrect coding if not properly documented and distinguished.
Missing documentation of concurrent cholangitis (K80.01 for calculous) can impact severity and appropriate DRG assignment.
Best-practice tips
- 01Document stone location, size, and number for accurate ICD-10 coding (K80.0).
- 02Capture cholecystitis symptoms (e.g., Murphy's sign) for CDI and specificity.
- 03Order appropriate imaging (ultrasound, CT) to support diagnosis and justify medical necessity.
- 04Record symptom duration and severity for proper HCC coding and risk adjustment.
- 05Ensure timely surgical consult documentation for compliance and patient safety.
Step-by-step checklist
- 1
Verify RUQ pain, nausea/vomiting documented
- 2
Confirm Murphy's sign or sonographic findings
- 3
Check WBC, LFTs for inflammatory markers
- 4
Document gallstone visualization (if present)
Ready-to-paste narrative
Patient presents with acute right upper quadrant pain consistent with acute calculous cholecystitis. Symptoms include severe biliary colic, nausea, vomiting, and positive Murphy's sign. Onset of pain was sudden and described as sharp and radiating to the right shoulder. Patient reports a history of intermittent episodes of biliary colic suggestive of chronic cholecystitis. Physical examination reveals tenderness in the right upper quadrant with guarding. Laboratory findings demonstrate elevated white blood cell count and elevated liver function tests, including alkaline phosphatase and bilirubin, indicative of biliary obstruction and inflammation. Ultrasound imaging of the gallbladder reveals the presence of gallstones and gallbladder wall thickening, confirming the diagnosis of acute calculous cholecystitis. Differential diagnoses considered included pancreatitis, peptic ulcer disease, and appendicitis. The patient's clinical presentation, laboratory results, and imaging findings support the diagnosis of acute calculous cholecystitis. Plan of care includes intravenous fluids, pain management with analgesics, and a surgical consult for possible cholecystectomy. Patient education provided on gallbladder disease, surgical options, and postoperative care. ICD-10 code K80.00, Acute calculous cholecystitis without obstruction, and CPT codes for ultrasound, laboratory tests, and surgical consultation will be documented for medical billing and coding purposes. The patient's condition and treatment plan will be closely monitored.
Common questions and answers
What are the most reliable diagnostic imaging modalities for differentiating acute calculous cholecystitis from other causes of right upper quadrant pain in a patient with suspected gallstones?+
While physical examination and laboratory findings are important, imaging plays a crucial role in confirming acute calculous cholecystitis and differentiating it from other conditions like biliary colic, acute pancreatitis, or hepatic abscess. Ultrasound is often the first-line imaging modality, offering high sensitivity for detecting gallstones and signs of gallbladder inflammation such as wall thickening, pericholecystic fluid, and a positive sonographic Murphy's sign. However, in cases where the diagnosis remains uncertain, cholescintigraphy (HIDA scan) offers superior specificity for demonstrating cystic duct obstruction, a hallmark of acute cholecystitis. Computed tomography (CT) scan can be helpful in identifying complications such as perforation or gangrene but may be less sensitive than ultrasound for detecting gallstones. Consider implementing a diagnostic algorithm that prioritizes ultrasound initially, followed by cholescintigraphy if needed, reserving CT for suspected complications. Explore how integrating these imaging modalities can improve diagnostic accuracy and patient management decisions.
How do I manage a patient with acute calculous cholecystitis who presents with severe comorbidities that increase their surgical risk?+
Managing acute calculous cholecystitis in patients with significant comorbidities requires a careful assessment of the risks and benefits of surgical intervention versus non-operative management. For high-risk patients, initial management often focuses on stabilizing the patient with intravenous fluids, pain control, and antibiotics. Percutaneous cholecystostomy tube placement can be considered as a temporizing measure to decompress the gallbladder and alleviate symptoms, allowing time for optimization of comorbidities before surgery. Non-operative management with antibiotics alone may be considered in select cases where surgery is deemed too risky, but this approach carries a higher risk of recurrent cholecystitis. Consult with a surgeon and anesthesiologist to thoroughly evaluate the patient's surgical risk and determine the most appropriate course of action, weighing the potential benefits of cholecystectomy against the increased perioperative risks. Learn more about evidence-based guidelines for managing acute cholecystitis in high-risk patients.
Beyond initial imaging and lab work, what clinical findings are crucial for accurate diagnosis and management of acute calculous cholecystitis and its potential complications like empyema or gangrene?+
While imaging and laboratory studies are essential, a thorough clinical assessment is paramount in accurately diagnosing and managing acute calculous cholecystitis and recognizing potential complications. A detailed history, focusing on the onset, location, character, and radiation of pain, is crucial. Physical examination findings such as right upper quadrant tenderness, a positive Murphy's sign, fever, and tachycardia should be carefully assessed. Be vigilant for signs of potential complications like empyema (e.g., high fever, chills, persistent pain) or gangrene (e.g., palpable mass, septic shock), which may require urgent surgical intervention. Serial abdominal examinations are important to monitor for disease progression. Consider implementing a standardized assessment protocol that incorporates both clinical and laboratory findings to improve early recognition of acute calculous cholecystitis and its complications. Explore how incorporating validated clinical scoring systems can further enhance risk stratification and guide management decisions.
Clinical accuracy: This information is provided for documentation and coding guidance and should not replace professional medical judgment.
Coding standard: ICD-10-CM, current FY guidelines.