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ICD-10 Guide
ICD-10 CodesK56.3

K56.3

Billable

Gallstone ileus

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 K56.3 is a billable code used to indicate a diagnosis of gallstone ileus.

Key Diagnostic Point:

Gallstone ileus is a rare but serious complication of cholelithiasis, where a gallstone obstructs the intestinal lumen, typically in the small intestine. This condition arises when a gallstone erodes through the gallbladder wall into the gastrointestinal tract, often leading to obstruction at the ileum. Clinically, patients may present with symptoms such as abdominal pain, nausea, vomiting, and signs of bowel obstruction, including distension and constipation. The anatomy involved primarily includes the gallbladder, small intestine, and occasionally the large intestine, depending on the location of the obstruction. Disease progression can lead to bowel ischemia, perforation, and peritonitis if not promptly diagnosed and treated. Diagnostic considerations include imaging studies such as abdominal X-rays, CT scans, or ultrasound, which can reveal the presence of air in the biliary tree (pneumobilia) and the obstructing gallstone. Early recognition and surgical intervention are crucial to prevent complications and improve patient outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires imaging and clinical correlation to confirm diagnosis.
  • Treatment complexity: Often necessitates surgical intervention, which can vary based on the patient's condition.
  • Documentation requirements: Detailed clinical notes and imaging reports are essential for accurate coding.
  • Coding specificity: Requires precise coding to differentiate from other gastrointestinal obstructions.

Audit Risk Factors

  • Common coding errors: Misclassification with other types of intestinal obstruction.
  • Documentation gaps: Incomplete imaging or clinical notes may lead to incorrect coding.
  • Billing challenges: Potential denials if documentation does not clearly support the diagnosis.

Specialty Focus

Medical Specialties

Gastroenterology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

General Surgery

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Gallstone ileus has significant clinical implications, as it can lead to severe complications such as bowel perforation and sepsis if not addressed promptly. The condition is relatively rare, but its occurrence can impact healthcare utilization patterns, leading to increased hospital stays and surgical interventions. Understanding the epidemiology of gallstone ileus can help healthcare providers identify at-risk populations and implement preventive measures, ultimately improving patient outcomes and quality measures.

ICD-9 vs ICD-10

Gallstone ileus has significant clinical implications, as it can lead to severe complications such as bowel perforation and sepsis if not addressed promptly. The condition is relatively rare, but its occurrence can impact healthcare utilization patterns, leading to increased hospital stays and surgical interventions. Understanding the epidemiology of gallstone ileus can help healthcare providers identify at-risk populations and implement preventive measures, ultimately improving patient outcomes and quality measures.

Reimbursement & Billing Impact

Reimbursement considerations include the complexity of the surgical intervention and the patient's overall health status. Common denials may arise from insufficient documentation linking the diagnosis to the treatment provided. Coders should ensure that all relevant clinical notes, imaging studies, and operative reports are included to support the claim. Best practices include using precise coding and ensuring that the documentation reflects the medical necessity of the procedures performed.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for K00-K99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for K00-K99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by K56.3?

K56.3 specifically covers gallstone ileus, characterized by intestinal obstruction caused by a gallstone. It is important to differentiate this from other types of ileus or intestinal obstruction, which may have different underlying causes.

When should K56.3 be used instead of related codes?

K56.3 should be used when the obstruction is specifically due to a gallstone. If the obstruction is due to other causes, such as adhesions or hernias, then other codes like K56.0 or K56.2 should be utilized.

What documentation supports K56.3?

Documentation should include clinical findings, imaging results showing the obstructing gallstone, and any surgical reports if applicable. Clear notes on the patient's symptoms and the treatment plan are also essential.