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ICD-10 Guide
ICD-10 CodesL03.019

L03.019

Billable

Cellulitis of unspecified finger

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

Code Description

ICD-10 L03.019 is a billable code used to indicate a diagnosis of cellulitis of unspecified finger.

Key Diagnostic Point:

Cellulitis of the finger is a bacterial skin infection that affects the dermis and subcutaneous tissues, often resulting from a break in the skin barrier. Clinically, it presents with localized swelling, redness, warmth, and tenderness in the affected finger. Patients may also experience systemic symptoms such as fever and malaise. The anatomy involved includes the skin layers, particularly the epidermis and dermis, as well as the underlying subcutaneous tissue. Disease progression can lead to complications if left untreated, including abscess formation or systemic spread of the infection. Diagnostic considerations involve a thorough clinical examination, patient history, and, in some cases, imaging studies to rule out abscesses or other complications. Laboratory tests may be performed to identify the causative organism, particularly in recurrent cases. Accurate diagnosis is crucial for effective treatment, which typically involves antibiotics and, if necessary, surgical intervention for drainage of abscesses.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires clinical evaluation and sometimes laboratory tests.
  • Treatment complexity: May involve antibiotics and potential surgical intervention.
  • Documentation requirements: Must document clinical findings and treatment rationale.
  • Coding specificity: Requires accurate identification of the site and nature of the infection.

Audit Risk Factors

  • Common coding errors: Misidentifying the site or severity of cellulitis.
  • Documentation gaps: Incomplete clinical notes regarding the infection's progression.
  • Billing challenges: Potential denials if documentation does not support the diagnosis.

Specialty Focus

Medical Specialties

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

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

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Cellulitis of the finger can significantly impact patient health, leading to complications if not treated promptly. It is essential for population health management, as timely intervention can reduce hospitalizations and improve quality of care. Understanding the epidemiology of cellulitis helps healthcare providers identify at-risk populations and implement preventive measures, ultimately enhancing healthcare utilization patterns.

ICD-9 vs ICD-10

Cellulitis of the finger can significantly impact patient health, leading to complications if not treated promptly. It is essential for population health management, as timely intervention can reduce hospitalizations and improve quality of care. Understanding the epidemiology of cellulitis helps healthcare providers identify at-risk populations and implement preventive measures, ultimately enhancing healthcare utilization patterns.

Reimbursement & Billing Impact

Reimbursement considerations include the complexity of the case and the necessity of any surgical interventions. Common denials may arise from insufficient documentation or misclassification of the condition. Coders should ensure that all clinical findings are well-documented, and any procedures performed are appropriately coded to avoid billing issues.

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 L03.019?

L03.019 covers cellulitis of the finger that is not specified as right or left. It includes infections caused by various bacteria, typically following skin trauma or pre-existing skin conditions.

When should L03.019 be used instead of related codes?

L03.019 should be used when the specific finger affected is not documented or when the infection is generalized without a specified laterality. If the finger is specified, use L03.011 or L03.012.

What documentation supports L03.019?

Documentation should include a detailed clinical examination, patient history indicating potential causes, and treatment plans. Notes should clearly describe the symptoms, findings, and any interventions performed.