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ICD-10 Guide
ICD-10 CodesK57.4

K57.4

Non-billable

Diverticulitis of both small and large intestine with perforation and abscess

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

Code Description

ICD-10 K57.4 is a used to indicate a diagnosis of diverticulitis of both small and large intestine with perforation and abscess.

Key Diagnostic Point:

K57.4 refers to diverticulitis of both the small and large intestine with perforation and abscess. This condition arises when diverticula, which are small pouches that can form in the walls of the intestines, become inflamed or infected. The clinical presentation often includes severe abdominal pain, fever, and changes in bowel habits. The anatomy involved primarily includes the colon and, in some cases, the small intestine, where diverticula can develop. Disease progression can lead to complications such as perforation, which is a critical condition where the intestinal wall is breached, allowing intestinal contents to leak into the abdominal cavity, potentially leading to peritonitis. An abscess may also form as a localized collection of pus due to the infection. Diagnostic considerations include imaging studies such as CT scans, which can reveal the presence of diverticula, inflammation, perforation, and abscess formation. Laboratory tests may show elevated white blood cell counts indicating infection. Early diagnosis and management are crucial to prevent severe complications.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Diagnostic complexity: Requires imaging and clinical evaluation to confirm diagnosis.
  • Treatment complexity: Often necessitates surgical intervention, especially in cases of perforation and abscess.
  • Documentation requirements: Detailed documentation of symptoms, imaging results, and treatment plans is essential.
  • Coding specificity: Requires precise coding to differentiate from other types of diverticulitis.

Audit Risk Factors

  • Common coding errors: Misclassification of diverticulitis severity or failure to document perforation.
  • Documentation gaps: Incomplete records regarding imaging and treatment can lead to coding inaccuracies.
  • Billing challenges: Potential for denials if documentation does not clearly support the diagnosis of perforation and abscess.

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

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The clinical significance of K57.4 lies in its potential to lead to severe complications, including sepsis and peritonitis, which can increase morbidity and mortality rates. Population health impact is notable, as diverticulitis is prevalent in older adults, and its complications can lead to increased healthcare utilization, including emergency visits and hospitalizations. Quality measures related to timely diagnosis and appropriate management of diverticulitis are essential for improving patient outcomes and reducing healthcare costs.

ICD-9 vs ICD-10

The clinical significance of K57.4 lies in its potential to lead to severe complications, including sepsis and peritonitis, which can increase morbidity and mortality rates. Population health impact is notable, as diverticulitis is prevalent in older adults, and its complications can lead to increased healthcare utilization, including emergency visits and hospitalizations. Quality measures related to timely diagnosis and appropriate management of diverticulitis are essential for improving patient outcomes and reducing healthcare costs.

Reimbursement & Billing Impact

Reimbursement considerations include ensuring that all relevant clinical details are documented, including imaging studies and surgical interventions. Common denials may occur if the documentation does not clearly establish the severity of the condition or if the treatment provided is not adequately justified. Best practices include thorough documentation of the patient's clinical presentation, imaging results, and treatment plans to support the medical necessity of the services rendered.

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 K57.4?

K57.4 specifically covers diverticulitis of both the small and large intestine that is complicated by perforation and abscess formation. This includes cases where diverticula have become inflamed and have led to serious complications requiring surgical intervention.

When should K57.4 be used instead of related codes?

K57.4 should be used when there is clear evidence of diverticulitis accompanied by perforation and abscess. If the diverticulitis is uncomplicated or without perforation, other codes such as K57.0 or K57.1 should be utilized.

What documentation supports K57.4?

Documentation for K57.4 should include clinical findings such as abdominal pain, fever, and imaging results (e.g., CT scans) that confirm the presence of diverticulitis, perforation, and abscess. Surgical notes and treatment plans should also be included to support the diagnosis.