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ICD-10 Guide
ICD-10 CodesK57.20

K57.20

Billable

Diverticulitis of large intestine with perforation and abscess without bleeding

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

Code Description

ICD-10 K57.20 is a billable code used to indicate a diagnosis of diverticulitis of large intestine with perforation and abscess without bleeding.

Key Diagnostic Point:

K57.20 refers to diverticulitis of the large intestine with perforation and abscess, without bleeding. This condition arises when diverticula, which are small pouches that can form in the wall of the colon, become inflamed or infected. The inflammation can lead to perforation of the intestinal wall, resulting in the formation of an abscess. Clinically, patients may present with symptoms such as severe abdominal pain, fever, and changes in bowel habits. The anatomy involved primarily includes the sigmoid colon, although diverticula can occur in other segments of the large intestine. Disease progression can vary; if left untreated, perforation can lead to peritonitis, sepsis, and potentially life-threatening complications. Diagnostic considerations include imaging studies such as CT scans, which can reveal the presence of diverticula, abscesses, and perforation. Laboratory tests may show leukocytosis indicative of infection. Timely diagnosis and intervention are crucial to prevent severe complications.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Diagnostic complexity
  • Treatment complexity
  • Documentation requirements
  • Coding specificity

Audit Risk Factors

  • Common coding errors include misclassifying diverticulitis severity.
  • Documentation gaps may arise if the clinical notes do not clearly indicate perforation or abscess formation.
  • Billing challenges may occur if the treatment plan is not adequately documented.

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 K57.20 lies in its potential for severe complications, including sepsis and peritonitis, which can lead to increased healthcare utilization and hospital admissions. Understanding this condition is crucial for improving population health outcomes, as timely intervention can reduce morbidity and mortality rates. Epidemiologically, diverticulitis is prevalent in older adults, making it a significant concern for healthcare providers managing gastrointestinal disorders.

ICD-9 vs ICD-10

The clinical significance of K57.20 lies in its potential for severe complications, including sepsis and peritonitis, which can lead to increased healthcare utilization and hospital admissions. Understanding this condition is crucial for improving population health outcomes, as timely intervention can reduce morbidity and mortality rates. Epidemiologically, diverticulitis is prevalent in older adults, making it a significant concern for healthcare providers managing gastrointestinal disorders.

Reimbursement & Billing Impact

Reimbursement considerations include the complexity of the case, the need for surgical intervention, and the associated costs of imaging and laboratory tests. Common denials may arise from insufficient documentation or failure to demonstrate medical necessity for procedures performed. Best practices include ensuring that all clinical notes, imaging reports, and treatment plans are thoroughly documented and aligned with coding guidelines.

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 K57.20?

K57.20 specifically covers diverticulitis of the large intestine that has progressed to include perforation and abscess formation, without any associated bleeding. It is important to differentiate this from other forms of diverticulitis that do not involve these complications.

When should K57.20 be used instead of related codes?

K57.20 should be used when there is clear documentation of diverticulitis with perforation and abscess, and no evidence of bleeding. It is essential to ensure that the clinical documentation supports the severity of the condition.

What documentation supports K57.20?

Documentation for K57.20 should include clinical notes detailing the diagnosis of diverticulitis, imaging results showing perforation and abscess, and any surgical or medical interventions undertaken. Laboratory results indicating infection may also be relevant.