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ICD-10 Guide
ICD-10 CodesJ84.82

J84.82

Adult pulmonary Langerhans cell histiocytosis

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

Code Description

ICD-10 J84.82 is a billable code used to indicate a diagnosis of adult pulmonary langerhans cell histiocytosis.

Key Diagnostic Point:

Adult pulmonary Langerhans cell histiocytosis (LCH) is a rare disorder characterized by the proliferation of Langerhans cells, a type of dendritic cell involved in immune response, within the lungs. Clinically, patients may present with respiratory symptoms such as cough, dyspnea, and chest pain, often accompanied by a history of smoking or exposure to environmental toxins. The disease primarily affects the lung parenchyma, leading to the formation of cysts and nodules, which can be identified through imaging studies like CT scans. Disease progression can vary; some patients may experience spontaneous remission, while others may develop chronic respiratory issues or pulmonary fibrosis. Diagnostic considerations include a thorough clinical evaluation, imaging studies, and histopathological confirmation through lung biopsy, which reveals the characteristic Langerhans cells. Given the potential for overlap with other interstitial lung diseases, accurate diagnosis is crucial for appropriate management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires histological confirmation and differentiation from other lung diseases.
  • Treatment complexity: Management may involve corticosteroids or immunosuppressive therapy, necessitating careful monitoring.
  • Documentation requirements: Detailed clinical history and imaging results must be documented to support diagnosis.
  • Coding specificity: Requires precise coding to differentiate from other forms of histiocytosis.

Audit Risk Factors

  • Common coding errors: Misclassification with other lung diseases or histiocytoses.
  • Documentation gaps: Incomplete clinical history or lack of biopsy results.
  • Billing challenges: Potential denials due to insufficient documentation or coding errors.

Specialty Focus

Medical Specialties

Pulmonology

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

Pathology

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 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

Adult pulmonary LCH, while rare, has significant implications for affected individuals, potentially leading to chronic respiratory issues and decreased quality of life. Understanding the epidemiology of this condition is crucial, as it primarily affects smokers and those exposed to environmental toxins. Population health initiatives aimed at raising awareness and improving diagnostic accuracy can enhance healthcare utilization patterns and inform quality measures in respiratory care.

ICD-9 vs ICD-10

Adult pulmonary LCH, while rare, has significant implications for affected individuals, potentially leading to chronic respiratory issues and decreased quality of life. Understanding the epidemiology of this condition is crucial, as it primarily affects smokers and those exposed to environmental toxins. Population health initiatives aimed at raising awareness and improving diagnostic accuracy can enhance healthcare utilization patterns and inform quality measures in respiratory care.

Reimbursement & Billing Impact

Reimbursement considerations may vary based on the complexity of treatment, including the use of immunosuppressive therapies. Common denials may arise from insufficient documentation or failure to provide a clear rationale for the diagnosis. Adhering to coding best practices, such as using the most specific code available and ensuring alignment with clinical documentation, can help mitigate these challenges.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for J00-J99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for J00-J99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by J84.82?

J84.82 specifically covers adult pulmonary Langerhans cell histiocytosis, which is characterized by the accumulation of Langerhans cells in the lungs, leading to respiratory symptoms and potential lung damage.

When should J84.82 be used instead of related codes?

J84.82 should be used when the diagnosis is confirmed as adult pulmonary LCH, particularly when histological evidence is available, differentiating it from other interstitial lung diseases or pediatric forms of LCH.

What documentation supports J84.82?

Documentation should include a detailed clinical history, imaging studies (such as CT scans), and histopathological findings from lung biopsies that confirm the presence of Langerhans cells.