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ICD-10 Guide
ICD-10 CodesL03.91

L03.91

Billable

Acute lymphangitis, unspecified

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

Code Description

ICD-10 L03.91 is a billable code used to indicate a diagnosis of acute lymphangitis, unspecified.

Key Diagnostic Point:

Acute lymphangitis is an inflammatory condition of the lymphatic vessels, typically resulting from a bacterial infection, most commonly caused by Streptococcus or Staphylococcus species. Clinically, patients present with symptoms such as localized pain, swelling, and erythema along the affected lymphatic pathways, often accompanied by systemic signs like fever and malaise. The anatomy involved primarily includes the lymphatic vessels, which transport lymph fluid and immune cells throughout the body. Disease progression can lead to complications such as abscess formation or systemic infection if left untreated. Diagnostic considerations include a thorough clinical examination, patient history, and, in some cases, imaging studies to assess the extent of lymphatic involvement. Laboratory tests may also be performed to identify the causative organism and guide antibiotic therapy. Prompt diagnosis and treatment are essential to prevent complications and ensure a favorable outcome.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires clinical evaluation and sometimes laboratory tests to confirm the diagnosis.
  • Treatment complexity: Involves antibiotic therapy and may require surgical intervention in severe cases.
  • Documentation requirements: Detailed documentation of symptoms, treatment plans, and follow-up care is necessary.
  • Coding specificity: Requires accurate coding to differentiate from other skin and soft tissue infections.

Audit Risk Factors

  • Common coding errors: Misclassification with other skin infections or failure to specify the site of infection.
  • Documentation gaps: Incomplete records regarding the clinical presentation and treatment response.
  • Billing challenges: Potential denials due to lack of supporting documentation for the diagnosis and treatment provided.

Specialty Focus

Medical Specialties

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

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

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

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Acute lymphangitis can significantly impact patient health, leading to complications if not treated promptly. It is essential for healthcare providers to recognize and manage this condition effectively to reduce hospitalizations and improve patient outcomes. Understanding the epidemiology of lymphangitis, particularly in populations at risk, can inform public health strategies and resource allocation.

ICD-9 vs ICD-10

Acute lymphangitis can significantly impact patient health, leading to complications if not treated promptly. It is essential for healthcare providers to recognize and manage this condition effectively to reduce hospitalizations and improve patient outcomes. Understanding the epidemiology of lymphangitis, particularly in populations at risk, can inform public health strategies and resource allocation.

Reimbursement & Billing Impact

Reimbursement considerations include the need for clear justification of the diagnosis and treatment in the medical record. Common denials may arise from insufficient documentation or misclassification of the condition. Best practices include ensuring that all relevant clinical details are captured in the documentation and that coding aligns with the services rendered.

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 L03.91?

L03.91 covers acute lymphangitis that is not specified by site or cause. It includes cases where the lymphatic vessels are inflamed due to bacterial infections, but does not specify the underlying etiology or location of the infection.

When should L03.91 be used instead of related codes?

L03.91 should be used when the lymphangitis is acute and unspecified. If the condition is chronic or has a specific site or cause, other codes such as L03.90 or L03.92 may be more appropriate.

What documentation supports L03.91?

Documentation should include a detailed clinical assessment, including symptoms, duration, and any laboratory results that support the diagnosis of acute lymphangitis. Treatment plans and follow-up notes are also essential.