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v1.0.0
ICD-10 Guide
DiagnosesGallbladder Sludge

Gallbladder Sludge

ICD-10 Coding for Gallbladder Sludge(K82.8)

PRIMARY SPECIALTYGastroenterology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Gallbladder Sludge?
Essential facts and insights about Gallbladder Sludge

Key Clinical Considerations:

  • Abdominal pain, particularly in the right upper quadrant
  • Nausea and vomiting
  • Biliary colic episodes
  • Ultrasound showing echogenic material in the gallbladder
  • Possible elevated liver enzymes

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including symptoms and duration
  • Results of imaging studies (e.g., ultrasound)
  • Assessment of gallbladder function if applicable
  • Specific mention of sludge in the gallbladder

Coding Guidelines

Usage Guidelines & Examples

  • Usage guidelines: Use specific codes based on the presence of symptoms and imaging findings.
  • Common errors: Misclassifying gallbladder sludge as gallstones.

Code Exclusions

Important Exclusions

  • Acute cholecystitis without sludge
  • Gallbladder cancer
  • Cholelithiasis without symptoms

Related ICD-10 Codes

Primary Codes
K80.20
Cholelithiasis with acute cholecystitis, without obstruction
K81.0
Acute cholecystitis
K82.8
Other specified diseases of gallbladder
Ancillary Codes
R93.2
Differential Codes
K80.20
K81.9

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Gastroenterology

Specialty Applications

  • Patients with symptoms suggestive of gallbladder disease
  • Outpatient and inpatient gastroenterology settings

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Document symptoms, imaging results, and clinical findings.

Billing considerations?

Ensure accurate coding based on documented findings and symptoms.