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v1.0.0
ICD-10 Guide
ICD-10 CodesK42.1

K42.1

Billable

Umbilical hernia with gangrene

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

Code Description

ICD-10 K42.1 is a billable code used to indicate a diagnosis of umbilical hernia with gangrene.

Key Diagnostic Point:

K42.1 refers to an umbilical hernia that has progressed to gangrene, a serious and potentially life-threatening condition. An umbilical hernia occurs when a portion of the intestine protrudes through a weak spot in the abdominal muscles near the navel. In cases where the hernia becomes incarcerated or strangulated, blood supply to the herniated tissue can be compromised, leading to gangrene. Clinically, patients may present with severe abdominal pain, swelling around the umbilicus, fever, and signs of systemic infection. The anatomy involved includes the abdominal wall, specifically the rectus abdominis muscle, and the peritoneal cavity. Disease progression can occur rapidly, necessitating prompt diagnosis and intervention. Diagnostic considerations include physical examination findings, imaging studies such as ultrasound or CT scans, and laboratory tests to assess for infection or metabolic derangements. Early recognition and surgical intervention are critical to prevent further complications, including sepsis or bowel necrosis.

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 the hernia type or failing to document the presence of gangrene.
  • Documentation gaps may arise if the clinical notes do not clearly indicate the severity of the hernia or the presence of gangrene.
  • Billing challenges can occur if the surgical procedure is not adequately justified by the documentation.

Specialty Focus

Medical Specialties

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

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

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 K42.1 lies in its potential for severe complications, including sepsis and bowel necrosis, which can lead to increased morbidity and mortality. The population health impact is notable, as umbilical hernias are common, and the risk of complications increases with delayed treatment. Quality measures may include timely surgical intervention and appropriate documentation practices to ensure optimal patient outcomes. Epidemiologically, understanding the prevalence of gangrenous umbilical hernias can inform healthcare utilization patterns and resource allocation.

ICD-9 vs ICD-10

The clinical significance of K42.1 lies in its potential for severe complications, including sepsis and bowel necrosis, which can lead to increased morbidity and mortality. The population health impact is notable, as umbilical hernias are common, and the risk of complications increases with delayed treatment. Quality measures may include timely surgical intervention and appropriate documentation practices to ensure optimal patient outcomes. Epidemiologically, understanding the prevalence of gangrenous umbilical hernias can inform healthcare utilization patterns and resource allocation.

Reimbursement & Billing Impact

Reimbursement considerations include the severity of the condition, the urgency of surgical intervention, and the complexity of the procedure performed. Common denials may arise from insufficient documentation of the gangrenous state or failure to provide evidence of the need for surgical repair. Best practices include ensuring that all clinical notes are thorough and that imaging studies are included in the patient's medical record to substantiate the diagnosis.

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 K42.1?

K42.1 specifically covers umbilical hernias that have become gangrenous, indicating a critical state where the blood supply to the herniated tissue is compromised, leading to tissue death.

When should K42.1 be used instead of related codes?

K42.1 should be used when there is clear documentation of gangrene associated with an umbilical hernia. If the hernia is not gangrenous, K42.0 should be selected instead.

What documentation supports K42.1?

Documentation must include clinical findings of the hernia, evidence of gangrene (such as necrotic tissue noted during examination or surgery), and any imaging studies that support the diagnosis.