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ICD-10 Guide
ICD-10 CodesR84.4

R84.4

Abnormal immunological findings in specimens from respiratory organs and thorax

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 R84.4 is a billable code used to indicate a diagnosis of abnormal immunological findings in specimens from respiratory organs and thorax.

Key Diagnostic Point:

R84.4 is used to classify abnormal immunological findings in specimens obtained from the respiratory organs and thorax. This code encompasses a range of findings that may indicate underlying pathologies such as infections, autoimmune disorders, or malignancies affecting the respiratory system. Common immunological tests include those assessing for specific antibodies, cytokine levels, and other markers that may reveal immune system dysfunction. Abnormal results may manifest as elevated or decreased levels of immunoglobulins, presence of autoantibodies, or abnormal responses to allergens. Clinicians often utilize this code when the findings do not fit neatly into other specific categories, necessitating a broader classification for abnormal immunological responses. Accurate documentation of the clinical context, including symptoms such as cough, dyspnea, or hemoptysis, is essential for proper coding and understanding of the patient's condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying conditions that can cause abnormal findings
  • Need for comprehensive clinical documentation to support the code
  • Potential overlap with other codes related to respiratory symptoms
  • Variability in laboratory test interpretations

Audit Risk Factors

  • Inadequate documentation linking abnormal findings to clinical symptoms
  • Misinterpretation of laboratory results leading to incorrect coding
  • Failure to specify the type of abnormal immunological finding
  • Inconsistent coding practices across different specialties

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed clinical notes including patient history, presenting symptoms, and results of immunological tests.

Common Clinical Scenarios

Patients presenting with chronic cough, unexplained respiratory symptoms, or suspected autoimmune conditions.

Billing Considerations

Ensure that all relevant laboratory findings are documented and correlate with the patient's clinical picture.

Emergency Medicine

Documentation Requirements

Acute care documentation must include immediate clinical findings and laboratory results.

Common Clinical Scenarios

Patients with acute respiratory distress or severe allergic reactions requiring rapid assessment.

Billing Considerations

Timely documentation is critical; ensure that abnormal findings are clearly linked to the presenting emergency.

Coding Guidelines

Inclusion Criteria

Use R84.4 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code is used only when the abnormal immunological findings are not classified elsewhere
  • Coders should reference the specific laboratory tests performed and their interpretations

Exclusion Criteria

Do NOT use R84.4 When
No specific exclusions found.

Related CPT Codes

86003CPT Code

Immunology test, specific antibody

Clinical Scenario

Used when testing for specific immunological responses in respiratory specimens.

Documentation Requirements

Document the specific antibodies tested and the clinical rationale for testing.

Specialty Considerations

Internal medicine may require more detailed documentation compared to emergency settings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of abnormal immunological findings, improving the ability to capture the nuances of respiratory-related conditions. R84.4 provides a distinct classification for findings that do not fit into other categories, enhancing data accuracy and clinical understanding.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of abnormal immunological findings, improving the ability to capture the nuances of respiratory-related conditions. R84.4 provides a distinct classification for findings that do not fit into other categories, enhancing data accuracy and clinical understanding.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of abnormal immunological findings, improving the ability to capture the nuances of respiratory-related conditions. R84.4 provides a distinct classification for findings that do not fit into other categories, enhancing data accuracy and clinical understanding.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What types of tests are associated with R84.4?

R84.4 is associated with various immunological tests, including those for specific antibodies, cytokine levels, and other markers indicative of immune system dysfunction in respiratory specimens.