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ICD-10 Guide
ICD-10 CodesL23.7

L23.7

Billable

Allergic contact dermatitis due to plants, except food

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

Code Description

ICD-10 L23.7 is a billable code used to indicate a diagnosis of allergic contact dermatitis due to plants, except food.

Key Diagnostic Point:

Allergic contact dermatitis due to plants, except food, is a type of skin inflammation that occurs when the skin comes into contact with allergens found in certain plants. Common culprits include poison ivy, poison oak, and poison sumac, which contain an oil called urushiol that triggers an immune response. Clinically, patients present with erythema, pruritus, and vesicular lesions that may develop into crusted plaques. The affected areas typically correspond to the site of contact, and symptoms can appear within hours to days after exposure. The disease progression can vary; while some individuals may experience mild symptoms, others may develop severe reactions requiring medical intervention. Diagnosis is primarily clinical, based on history and physical examination, although patch testing may be utilized to confirm the allergen. Understanding the anatomy involved, particularly the epidermis and dermis, is crucial as the immune response primarily affects these layers. Accurate diagnosis and management are essential to prevent complications such as secondary infections from scratching.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires careful history-taking and sometimes patch testing.
  • Treatment complexity: Management may involve topical corticosteroids, antihistamines, and avoidance strategies.
  • Documentation requirements: Detailed documentation of exposure history and clinical findings is necessary.
  • Coding specificity: Requires precise coding to differentiate from other dermatitis types.

Audit Risk Factors

  • Common coding errors: Misclassification with other dermatitis codes.
  • Documentation gaps: Incomplete exposure history or lack of clinical findings.
  • Billing challenges: Potential denials if documentation does not clearly 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

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

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 due to plants significantly impacts population health, leading to increased healthcare utilization due to its prevalence, especially in outdoor occupations and activities. Quality measures related to skin health often include the management of dermatitis cases, emphasizing the importance of accurate diagnosis and treatment. Epidemiologically, understanding the triggers and prevalence of plant-related dermatitis can help in public health initiatives aimed at education and prevention.

ICD-9 vs ICD-10

Allergic contact dermatitis due to plants significantly impacts population health, leading to increased healthcare utilization due to its prevalence, especially in outdoor occupations and activities. Quality measures related to skin health often include the management of dermatitis cases, emphasizing the importance of accurate diagnosis and treatment. Epidemiologically, understanding the triggers and prevalence of plant-related dermatitis can help in public health initiatives aimed at education and prevention.

Reimbursement & Billing Impact

reimbursement.

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 L23.7?

L23.7 covers allergic contact dermatitis specifically due to plant allergens, excluding food-related allergies. Conditions include reactions to poison ivy, poison oak, and poison sumac, characterized by localized skin inflammation and allergic responses.

When should L23.7 be used instead of related codes?

L23.7 should be used when the allergic contact dermatitis is specifically due to plant exposure, as opposed to other allergens or irritants. It is important to document the source of the allergen to ensure appropriate code selection.

What documentation supports L23.7?

Documentation should include a detailed patient history of exposure to specific plants, clinical findings such as the appearance and location of the rash, and any treatments provided. Patch test results may also support the diagnosis.