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v1.0.0
ICD-10 Guide
ICD-10 CodesD84.8

D84.8

Billable

Other specified immunodeficiencies

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 D84.8 is a billable code used to indicate a diagnosis of other specified immunodeficiencies.

Key Diagnostic Point:

D84.8 refers to a category of immunodeficiencies that are not classified under more specific codes. These immunodeficiencies can arise from various causes, including genetic factors, environmental influences, or as a consequence of other medical conditions. Patients with D84.8 may present with recurrent infections, autoimmune disorders, or malignancies due to their compromised immune systems. The condition can be associated with hematologic disorders such as lymphopenia or hypogammaglobulinemia, which can lead to increased susceptibility to infections and other complications. Accurate diagnosis often requires a thorough clinical evaluation, including laboratory tests to assess immune function and identify underlying causes. Treatment may involve immunoglobulin replacement therapy, prophylactic antibiotics, or management of associated conditions. Understanding the nuances of this code is crucial for proper documentation and coding, as it encompasses a range of immunodeficiency disorders that may not fit neatly into other categories.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes leading to immunodeficiency
  • Overlap with other hematologic conditions
  • Need for comprehensive clinical documentation
  • Potential for misclassification with similar codes

Audit Risk Factors

  • Inadequate documentation of the immunodeficiency type
  • Failure to specify associated conditions
  • Misuse of related codes leading to upcoding or downcoding
  • Lack of clarity in treatment plans

Specialty Focus

Medical Specialties

Immunology

Documentation Requirements

Detailed immunological assessments, including lab results and patient history.

Common Clinical Scenarios

Patients presenting with recurrent infections or autoimmune symptoms.

Billing Considerations

Ensure all relevant lab tests and clinical findings are documented to support the diagnosis.

Hematology

Documentation Requirements

Complete blood counts, immunoglobulin levels, and bone marrow biopsy results.

Common Clinical Scenarios

Patients with unexplained cytopenias or lymphoproliferative disorders.

Billing Considerations

Document any hematologic abnormalities that may contribute to the immunodeficiency.

Coding Guidelines

Inclusion Criteria

Use D84.8 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the diagnosis is supported by clinical documentation
  • Include any relevant laboratory findings and specify any associated conditions that may impact treatment

Exclusion Criteria

Do NOT use D84.8 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

36415CPT Code

Collection of venous blood by venipuncture

Clinical Scenario

Used for laboratory tests to assess immune function.

Documentation Requirements

Document the reason for blood draw and any relevant clinical findings.

Specialty Considerations

Ensure that the specialty performing the test is noted.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of immunodeficiencies, improving the ability to capture the complexity of these conditions. D84.8 provides a necessary option for cases that do not fit neatly into other categories, enhancing data accuracy and patient care.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of immunodeficiencies, improving the ability to capture the complexity of these conditions. D84.8 provides a necessary option for cases that do not fit neatly into other categories, enhancing data accuracy and patient care.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of immunodeficiencies, improving the ability to capture the complexity of these conditions. D84.8 provides a necessary option for cases that do not fit neatly into other categories, enhancing data accuracy and patient care.

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 conditions fall under D84.8?

D84.8 includes various unspecified immunodeficiencies that do not fit into more specific categories, such as genetic disorders or those resulting from other medical conditions.

How can I ensure accurate coding for D84.8?

Accurate coding requires thorough documentation of the patient's clinical presentation, laboratory findings, and any associated conditions. Always refer to the latest coding guidelines.