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ICD-10 Guide
ICD-10 CodesL03.319

L03.319

Billable

Cellulitis of trunk, unspecified

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

Code Description

ICD-10 L03.319 is a billable code used to indicate a diagnosis of cellulitis of trunk, unspecified.

Key Diagnostic Point:

Cellulitis of the trunk, unspecified, is a bacterial skin infection characterized by inflammation of the skin and subcutaneous tissues. Clinically, it presents as a red, swollen area that may be warm to the touch and tender. The trunk, which includes the chest and abdomen, is a common site for cellulitis, often resulting from breaks in the skin, such as cuts, insect bites, or surgical wounds. The disease can progress rapidly, leading to systemic symptoms such as fever, chills, and malaise if left untreated. Diagnosis is primarily clinical, supported by patient history and physical examination. Laboratory tests may be conducted to rule out other conditions or to identify the causative organism, although they are not always necessary. Early diagnosis and treatment are crucial to prevent complications such as abscess formation or sepsis. Treatment typically involves antibiotics, and in severe cases, hospitalization may be required for intravenous therapy. Accurate coding is essential for proper reimbursement and to reflect the severity of the condition in medical records.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires clinical evaluation and may involve differential diagnosis.
  • Treatment complexity: Varies from outpatient management to inpatient care depending on severity.
  • Documentation requirements: Must include detailed clinical findings and treatment plans.
  • Coding specificity: Requires precise coding to differentiate from other skin infections.

Audit Risk Factors

  • Common coding errors: Misclassification of cellulitis severity or location.
  • Documentation gaps: Insufficient clinical notes to support diagnosis.
  • Billing challenges: Potential denials due to lack of specificity or supporting evidence.

Specialty Focus

Medical Specialties

Primary medical specialty: Dermatology

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

Secondary specialty: Infectious Disease

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

Cellulitis of the trunk can significantly impact patient health, leading to complications if not treated promptly. It is a common condition that contributes to healthcare utilization, including emergency visits and hospital admissions. Understanding the epidemiology of cellulitis, including risk factors such as diabetes and obesity, can help healthcare providers implement preventive measures and improve patient outcomes. Quality measures related to timely treatment and follow-up care are essential for managing this condition effectively.

ICD-9 vs ICD-10

Cellulitis of the trunk can significantly impact patient health, leading to complications if not treated promptly. It is a common condition that contributes to healthcare utilization, including emergency visits and hospital admissions. Understanding the epidemiology of cellulitis, including risk factors such as diabetes and obesity, can help healthcare providers implement preventive measures and improve patient outcomes. Quality measures related to timely treatment and follow-up care are essential for managing this condition effectively.

Reimbursement & Billing Impact

Cellulitis of the trunk can significantly impact patient health, leading to complications if not treated promptly. It is a common condition that contributes to healthcare utilization, including emergency visits and hospital admissions. Understanding the epidemiology of cellulitis, including risk factors such as diabetes and obesity, can help healthcare providers implement preventive measures and improve patient outcomes. Quality measures related to timely treatment and follow-up care are essential for managing this condition effectively.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for L00-L99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for L00-L99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by L03.319?

L03.319 covers unspecified cellulitis of the trunk, which may arise from various causes including trauma, surgical wounds, or insect bites. It is important to note that this code does not specify the underlying cause or the presence of systemic symptoms.

When should L03.319 be used instead of related codes?

L03.319 should be used when the cellulitis is localized to the trunk and the specific cause or site is not documented. If the cellulitis is more localized or has a specific cause, other codes may be more appropriate.

What documentation supports L03.319?

Documentation should include a clear description of the clinical presentation, any relevant history of skin trauma, and the treatment plan. Additionally, any systemic symptoms should be noted to support the diagnosis.