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ICD-10 Guide
ICD-10 CodesL23.89

L23.89

Billable

Allergic contact dermatitis due to other agents

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

Code Description

ICD-10 L23.89 is a billable code used to indicate a diagnosis of allergic contact dermatitis due to other agents.

Key Diagnostic Point:

Allergic contact dermatitis due to other agents is a type of skin inflammation that occurs when the skin comes into contact with a substance that triggers an allergic reaction. Clinically, it presents with erythema, pruritus, and vesicular lesions, often localized to the area of contact. The anatomy involved primarily includes the epidermis and dermis, where the immune response is activated upon exposure to allergens such as metals, fragrances, or preservatives. Disease progression can vary; initial exposure may not elicit a reaction, but subsequent exposures often result in more pronounced symptoms due to sensitization. Diagnostic considerations include a thorough patient history to identify potential allergens, patch testing to confirm sensitivities, and ruling out other dermatological conditions. Accurate diagnosis is crucial, as misidentification can lead to inappropriate treatment and prolonged patient discomfort.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires identification of specific allergens and may involve patch testing.
  • Treatment complexity: Management may include topical corticosteroids, antihistamines, and avoidance of allergens.
  • Documentation requirements: Detailed patient history and clinical findings must be documented.
  • Coding specificity: Requires precise coding to differentiate from other dermatitis types.

Audit Risk Factors

  • Common coding errors: Misuse of dermatitis codes or failure to specify the allergen.
  • Documentation gaps: Incomplete patient history or lack of patch test results.
  • Billing challenges: Denials may arise from insufficient documentation or incorrect code selection.

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

Allergy and Immunology

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

Allergic contact dermatitis significantly affects population health, leading to increased healthcare utilization due to frequent visits for management and treatment. It can impact quality of life, causing discomfort and potential work absenteeism. Understanding the epidemiology of this condition helps in developing preventive strategies and improving patient education regarding allergen avoidance.

ICD-9 vs ICD-10

Allergic contact dermatitis significantly affects population health, leading to increased healthcare utilization due to frequent visits for management and treatment. It can impact quality of life, causing discomfort and potential work absenteeism. Understanding the epidemiology of this condition helps in developing preventive strategies and improving patient education regarding allergen avoidance.

Reimbursement & Billing Impact

Reimbursement considerations include verifying patient insurance coverage for allergy testing and treatment. Common denials may occur if documentation does not adequately demonstrate the medical necessity of the services provided. Best practices include maintaining thorough records of patient interactions, treatment plans, and follow-up care to support claims and reduce the likelihood of audits.

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 L23.89?

L23.89 covers allergic contact dermatitis caused by various agents not specified in other codes, including reactions to chemicals, plants, and other environmental factors.

When should L23.89 be used instead of related codes?

L23.89 should be used when the allergic contact dermatitis is due to agents not classified under more specific codes, ensuring accurate representation of the patient's condition.

What documentation supports L23.89?

Documentation should include a detailed patient history, results from patch testing, clinical observations, and treatment plans to support the diagnosis of allergic contact dermatitis.