ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesL03.3

L03.3

Non-billable

Cellulitis and acute lymphangitis of trunk

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

Code Description

ICD-10 L03.3 is a used to indicate a diagnosis of cellulitis and acute lymphangitis of trunk.

Key Diagnostic Point:

L03.3 refers to cellulitis and acute lymphangitis of the trunk, which are infections of the skin and subcutaneous tissues. Clinically, cellulitis presents as a red, swollen area that feels warm and tender to the touch, often accompanied by systemic symptoms such as fever and chills. The trunk, which includes the chest and abdomen, can be affected, leading to significant discomfort and potential complications if left untreated. The underlying anatomy involved includes the dermis and subcutaneous fat, where bacteria, typically Streptococcus or Staphylococcus species, invade through breaks in the skin. Disease progression can lead to systemic infection, abscess formation, or sepsis if not managed promptly. Diagnostic considerations include a thorough clinical examination, patient history, and possibly imaging studies to rule out abscesses. Laboratory tests may also be performed to identify the causative organism and assess the severity of the infection. Early diagnosis and treatment are crucial to prevent complications and ensure favorable outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires clinical evaluation and possibly laboratory tests.
  • Treatment complexity: May involve antibiotics and, in some cases, surgical intervention.
  • Documentation requirements: Detailed documentation of symptoms, treatment plans, and follow-up care is necessary.
  • Coding specificity: Requires accurate coding to differentiate from other skin infections.

Audit Risk Factors

  • Common coding errors: Misclassification of cellulitis severity or location.
  • Documentation gaps: Incomplete records of patient symptoms or treatment plans.
  • Billing challenges: Denials due to lack of supporting documentation for the diagnosis.

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

The clinical significance of L03.3 lies in its potential to lead to serious complications if not treated promptly. It affects a significant portion of the population, particularly those with compromised immune systems or chronic skin conditions. Understanding the epidemiology of cellulitis can help healthcare providers implement preventive measures and improve patient outcomes. Quality measures may include tracking the incidence of cellulitis and ensuring appropriate antibiotic stewardship to reduce resistance.

ICD-9 vs ICD-10

The clinical significance of L03.3 lies in its potential to lead to serious complications if not treated promptly. It affects a significant portion of the population, particularly those with compromised immune systems or chronic skin conditions. Understanding the epidemiology of cellulitis can help healthcare providers implement preventive measures and improve patient outcomes. Quality measures may include tracking the incidence of cellulitis and ensuring appropriate antibiotic stewardship to reduce resistance.

Reimbursement & Billing Impact

Reimbursement considerations include the severity of the infection and the necessity for any surgical interventions. Common denials may arise if documentation does not clearly support the diagnosis or if the treatment plan is not adequately outlined. Best practices include ensuring that all relevant clinical details are captured in the medical record and that coding reflects the specificity of the diagnosis 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 L03.3?

L03.3 covers cellulitis and acute lymphangitis specifically affecting the trunk. It includes infections that may arise from skin trauma, surgical wounds, or other breaks in the skin, leading to inflammation and infection of the dermis and subcutaneous tissues.

When should L03.3 be used instead of related codes?

L03.3 should be used when the infection specifically involves the trunk area. If the infection is localized to the face or extremities, other codes such as L03.0 or L03.1 should be selected. Accurate anatomical localization is key in code selection.

What documentation supports L03.3?

Documentation should include a detailed clinical assessment of the affected area, patient history indicating the onset of symptoms, any relevant imaging or laboratory results, and a treatment plan outlining the prescribed antibiotics or interventions.