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ICD-10 Guide
ICD-10 CodesL01.1

L01.1

Billable

Impetiginization of other dermatoses

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

Code Description

ICD-10 L01.1 is a billable code used to indicate a diagnosis of impetiginization of other dermatoses.

Key Diagnostic Point:

Impetiginization of other dermatoses refers to the secondary infection of pre-existing skin conditions, such as eczema or psoriasis, by bacteria, most commonly Staphylococcus aureus or Streptococcus pyogenes. Clinically, this condition presents with crusted lesions, oozing, and increased erythema at the site of the underlying dermatosis. The anatomy involved primarily includes the epidermis and dermis, where the infection can lead to further inflammation and disruption of the skin barrier. Disease progression can vary; if left untreated, impetiginization can lead to systemic infections or complications such as cellulitis. Diagnostic considerations include a thorough clinical examination, history of the underlying skin condition, and, if necessary, culture of the lesions to identify the causative organism. It is essential to differentiate impetiginization from other skin infections to ensure appropriate treatment and management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity
  • Treatment complexity
  • Documentation requirements
  • Coding specificity

Audit Risk Factors

  • Common coding errors include misidentifying the primary dermatosis
  • Documentation gaps may arise if the underlying condition is not clearly stated
  • Billing challenges can occur if the treatment does not align with the documented 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

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The clinical significance of L01.1 lies in its potential to exacerbate existing skin conditions and lead to more severe infections if not treated promptly. Population health impact includes increased healthcare utilization due to complications from untreated impetiginization. Quality measures may focus on timely diagnosis and treatment of secondary infections, which can improve patient outcomes and reduce the burden on healthcare systems.

ICD-9 vs ICD-10

The clinical significance of L01.1 lies in its potential to exacerbate existing skin conditions and lead to more severe infections if not treated promptly. Population health impact includes increased healthcare utilization due to complications from untreated impetiginization. Quality measures may focus on timely diagnosis and treatment of secondary infections, which can improve patient outcomes and reduce the burden on healthcare systems.

Reimbursement & Billing Impact

Reimbursement considerations include ensuring that the treatment aligns with the documented diagnosis and that all relevant services are coded accurately. Common denials may arise from insufficient documentation linking the infection to the underlying skin condition. Best practices include maintaining clear clinical notes and ensuring that all procedures performed are justified by the diagnosis.

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 L01.1?

L01.1 covers cases where bacterial infection complicates other dermatoses such as atopic dermatitis, seborrheic dermatitis, or psoriasis. It is characterized by the presence of crusted lesions and oozing in areas affected by these conditions.

When should L01.1 be used instead of related codes?

L01.1 should be used when there is clear evidence of a bacterial infection superimposed on an existing dermatosis. If the infection is primary or not related to another skin condition, other codes such as L01.0 should be considered.

What documentation supports L01.1?

Documentation should include a detailed history of the underlying skin condition, clinical findings of the impetiginized lesions, and any laboratory results confirming the bacterial infection.