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ICD-10 Guide
ICD-10 CodesJ67.7

J67.7

Air conditioner and humidifier lung

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

Code Description

ICD-10 J67.7 is a billable code used to indicate a diagnosis of air conditioner and humidifier lung.

Key Diagnostic Point:

Air conditioner and humidifier lung, classified under the ICD-10 code J67.7, refers to a form of hypersensitivity pneumonitis caused by inhalation of organic dust or chemicals from air conditioning systems and humidifiers. Clinically, patients may present with symptoms such as cough, dyspnea, fever, and malaise, often exacerbated by exposure to contaminated air. The condition primarily affects the lungs, leading to inflammation of the alveoli and interstitial lung tissue. Disease progression can vary; acute cases may resolve with removal from exposure, while chronic cases can lead to pulmonary fibrosis if exposure continues. Diagnostic considerations include a thorough patient history, identifying potential environmental exposures, and imaging studies such as chest X-rays or CT scans, which may reveal ground-glass opacities or reticular patterns. Pulmonary function tests can also aid in assessing the extent of lung involvement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires detailed patient history and environmental assessment.
  • Treatment complexity: Management may involve avoidance of triggers and corticosteroids.
  • Documentation requirements: Necessitates thorough documentation of exposure history and clinical findings.
  • Coding specificity: Requires accurate coding to differentiate from other forms of pneumonitis.

Audit Risk Factors

  • Common coding errors: Misclassification with other respiratory conditions.
  • Documentation gaps: Incomplete exposure history or symptom description.
  • Billing challenges: Difficulty in proving medical necessity for treatment.

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

Occupational Medicine

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

The clinical significance of J67.7 lies in its potential to cause chronic respiratory issues if exposure continues, impacting patient quality of life and healthcare utilization. Understanding this condition is vital for occupational health, as it can affect workers in environments with poor air quality. Epidemiologically, awareness of air conditioner and humidifier lung can lead to better preventive measures and improved health outcomes in affected populations.

ICD-9 vs ICD-10

The clinical significance of J67.7 lies in its potential to cause chronic respiratory issues if exposure continues, impacting patient quality of life and healthcare utilization. Understanding this condition is vital for occupational health, as it can affect workers in environments with poor air quality. Epidemiologically, awareness of air conditioner and humidifier lung can lead to better preventive measures and improved health outcomes in affected populations.

Reimbursement & Billing Impact

Reimbursement considerations include the need for thorough documentation of the patient's exposure history, clinical symptoms, and any diagnostic tests performed. Common denials may arise from insufficient documentation or failure to establish medical necessity for treatment. It is crucial to follow coding best practices by ensuring accurate code selection and maintaining comprehensive records to support claims.

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 J67.7?

J67.7 specifically covers hypersensitivity pneumonitis related to exposure from air conditioning systems and humidifiers, often linked to mold or bacteria growth in these devices.

When should J67.7 be used instead of related codes?

J67.7 should be used when the patient's respiratory symptoms are directly linked to exposure from air conditioning or humidifier systems, differentiating it from other pneumonitis codes that may not specify the source.

What documentation supports J67.7?

Documentation should include a detailed history of exposure to air conditioning or humidifier systems, clinical symptoms, results from imaging studies, and any pulmonary function tests performed.