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ICD-10 Guide
ICD-10 CodesL27.2

L27.2

Billable

Dermatitis due to ingested food

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

Code Description

ICD-10 L27.2 is a billable code used to indicate a diagnosis of dermatitis due to ingested food.

Key Diagnostic Point:

Dermatitis due to ingested food, classified under ICD-10 code L27.2, is characterized by an inflammatory skin reaction resulting from the ingestion of specific food allergens. Clinically, patients may present with symptoms such as erythema, pruritus, and vesicular lesions, typically localized to areas that have come into contact with the allergen. The anatomy involved primarily includes the epidermis and dermis, where the immune response triggers inflammation. Disease progression can vary; some patients may experience acute reactions shortly after ingestion, while others may develop chronic dermatitis with repeated exposure. Diagnostic considerations include a thorough patient history, identification of potential food allergens, and possibly skin prick tests or patch testing to confirm sensitivities. It is essential to differentiate L27.2 from other dermatitis codes, such as those related to contact dermatitis or atopic dermatitis, as the underlying etiology is distinct.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires identification of specific food allergens and correlation with skin symptoms.
  • Treatment complexity: Management may involve dietary modifications, antihistamines, or topical corticosteroids.
  • Documentation requirements: Detailed patient history and evidence of food allergy are necessary.
  • Coding specificity: Requires precise coding to differentiate from other dermatitis types.

Audit Risk Factors

  • Common coding errors: Misidentifying dermatitis type or failing to document food allergies.
  • Documentation gaps: Incomplete patient history or lack of allergy testing results.
  • 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

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Dermatitis due to ingested food has significant clinical implications, affecting patient quality of life and healthcare utilization. It can lead to increased visits to dermatologists and allergists, impacting population health through rising incidences of food allergies. Understanding this condition is crucial for developing quality measures and improving patient outcomes in dermatological care.

ICD-9 vs ICD-10

Dermatitis due to ingested food has significant clinical implications, affecting patient quality of life and healthcare utilization. It can lead to increased visits to dermatologists and allergists, impacting population health through rising incidences of food allergies. Understanding this condition is crucial for developing quality measures and improving patient outcomes in dermatological care.

Reimbursement & Billing Impact

Reimbursement considerations include ensuring that the diagnosis is supported by allergy testing and a detailed patient history. Common denials may arise from insufficient documentation linking the dermatitis to specific food ingestion. Best practices include maintaining thorough records of patient interactions, allergy testing results, and treatment plans to substantiate claims.

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 L27.2?

L27.2 covers dermatitis specifically triggered by the ingestion of food allergens, including but not limited to reactions from nuts, shellfish, dairy, and gluten. It is essential to document the specific food items involved.

When should L27.2 be used instead of related codes?

L27.2 should be used when the dermatitis is directly linked to ingested food allergens, as opposed to contact dermatitis (L23) or atopic dermatitis (L20), which have different etiologies.

What documentation supports L27.2?

Documentation should include a detailed patient history of food intake, symptoms onset, and any allergy testing results. Clear correlation between food ingestion and skin symptoms is critical.