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K81.9
ICD-10-CM
Cholecystitis

Learn about cholecystitis, including acute cholecystitis, chronic cholecystitis, and gallbladder inflammation. This resource provides information on diagnosis, clinical documentation, and medical coding for cholecystitis relevant for healthcare professionals. Find details on symptoms, treatment, and ICD-10 codes related to gallbladder inflammation and cholecystitis.

Also known as

Gallbladder inflammation
Acute cholecystitis
Chronic cholecystitis

Diagnosis Snapshot

Key Facts
  • Definition : Inflammation of the gallbladder, usually due to gallstones blocking the cystic duct.
  • Clinical Signs : Right upper quadrant pain, fever, nausea, vomiting, tenderness to touch. Jaundice may occur.
  • Common Settings : Emergency room, outpatient clinic, surgery center.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC K81.9 Coding
K80-K87

Diseases of the gallbladder, biliary tract

Covers various gallbladder and bile duct conditions, including cholecystitis.

K81

Cholecystitis

Specifically classifies different types of cholecystitis.

R10-R19

Symptoms and signs involving the abdomen and pelvis

Includes abdominal pain and other symptoms that may accompany cholecystitis.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the cholecystitis acute?

  • Yes

    With cholelithiasis?

  • No

    Is the cholecystitis chronic?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Gallbladder inflammation
Gallstones
Biliary colic

Documentation Best Practices

Documentation Checklist
  • Cholecystitis ICD-10 code (K81.x)
  • Document symptom onset and duration
  • RUQ pain, nausea, vomiting details
  • Murphy's sign positive or negative
  • Ultrasound findings supporting diagnosis

Coding and Audit Risks

Common Risks
  • Unspecified Cholecystitis

    Coding acute or chronic cholecystitis without specifying type when documented leads to inaccurate severity reflection and reimbursement.

  • Cholecystitis with Cholelithiasis

    Failing to code associated cholelithiasis when present with cholecystitis can impact DRG assignment and quality metrics.

  • History of Cholecystitis

    Incorrectly coding history of cholecystitis as active disease leads to inflated complication rates and inaccurate clinical picture.

Mitigation Tips

Best Practices
  • Document gallbladder wall thickening, pericholecystic fluid for accurate coding.
  • Specify acute/chronic, calculous/acalculous cholecystitis for CDI.
  • Capture pain location, severity, and Murphy's sign for complete documentation.
  • Correlate imaging findings (ultrasound, HIDA) with clinical symptoms.
  • Code comorbidities like gallstones, biliary dyskinesia for risk adjustment.

Clinical Decision Support

Checklist
  • Verify RUQ pain, tenderness, fever (ICD-10 K81.0)
  • Check Murphy's sign, ultrasound findings for gallstones (SNOMED CT 78901009)
  • Review WBC, LFTs, bilirubin for inflammation (LOINC 26464-8, 1920-8)
  • Assess for nausea, vomiting, anorexia (patient symptom documentation)

Reimbursement and Quality Metrics

Impact Summary
  • Cholecystitis coding accuracy impacts MS-DRG assignment and reimbursement.
  • Proper HCC coding for chronic cholecystitis affects risk adjustment.
  • Timely coding and billing minimize claim denials for gallbladder procedures.
  • Accurate cholecystitis documentation improves quality reporting metrics.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes for . Our AI-powered assistant ensures compliance and reduces coding errors.

Frequently Asked Questions

Common Questions and Answers

Q: What are the key differentiating factors in diagnosing acute vs. chronic cholecystitis in a clinical setting?

A: Differentiating between acute and chronic cholecystitis relies on a combination of patient history, physical examination, and imaging findings. Acute cholecystitis typically presents with sudden, severe right upper quadrant pain, fever, and positive Murphy's sign. Laboratory tests may reveal leukocytosis and elevated liver function tests. Ultrasound is often the initial imaging modality, showing gallbladder wall thickening, pericholecystic fluid, and possibly gallstones. Chronic cholecystitis, on the other hand, often presents with recurrent episodes of biliary colic, less intense pain, and a history of previous gallbladder issues. Imaging may reveal a contracted, thickened gallbladder wall and gallstones. Consider implementing a diagnostic algorithm that incorporates risk factors, clinical presentation, and imaging findings to accurately differentiate between the two. Explore how incorporating advanced imaging techniques like cholescintigraphy or magnetic resonance cholangiopancreatography (MRCP) can further aid in challenging cases.

Q: How can I effectively manage a patient presenting with suspected cholecystitis based on initial laboratory and ultrasound results while awaiting surgical consultation?

A: Managing a patient with suspected cholecystitis prior to surgical consultation involves providing supportive care and minimizing potential complications. Initial management includes making the patient NPO (nothing by mouth), administering intravenous fluids to maintain hydration, providing analgesics for pain control, and administering broad-spectrum antibiotics to address potential infection. Closely monitor vital signs and laboratory values, particularly white blood cell count and liver function tests. Communicate promptly with the surgical team regarding the patient's clinical status and imaging findings. Learn more about current guidelines for antibiotic prophylaxis and pain management in acute cholecystitis. Consider implementing standardized protocols for managing suspected cholecystitis to ensure consistent and efficient care.

Quick Tips

Practical Coding Tips
  • Code acute/chronic specificity
  • Document ultrasound findings
  • Check for gallstones K80
  • Consider biliary dyskinesia
  • Query physician for clarity

Documentation Templates

Patient presents with symptoms suggestive of cholecystitis.  Chief complaint includes right upper quadrant pain, potentially radiating to the right shoulder or back.  The patient may describe the pain as sharp, cramping, or dull and aching.  Associated symptoms may include nausea, vomiting, fever, chills, and indigestion.  Physical examination may reveal Murphy's sign, right upper quadrant tenderness, and guarding.  Differential diagnosis includes biliary colic, pancreatitis, peptic ulcer disease, and hepatitis.  Laboratory studies may show elevated white blood cell count, elevated liver function tests, and elevated bilirubin levels.  Abdominal ultrasound is the preferred initial imaging modality for evaluating the gallbladder and identifying gallstones, gallbladder wall thickening, and pericholecystic fluid, consistent with acute cholecystitis.  Cholescintigraphy (HIDA scan) may be considered if ultrasound findings are inconclusive.  Treatment for acute cholecystitis typically involves pain management, intravenous fluids, antibiotics, and ultimately, laparoscopic cholecystectomy.  Chronic cholecystitis, characterized by repeated episodes of inflammation, may also necessitate cholecystectomy.  Patient education regarding dietary modifications, including a low-fat diet, is crucial.  ICD-10 code K81.0 (acute cholecystitis) or K81.1 (chronic cholecystitis) and CPT code 47562 (laparoscopic cholecystectomy) are relevant coding considerations.  Follow-up care and monitoring are essential to ensure resolution of symptoms and prevent complications.
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