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ICD-10 Guide
ICD-10 CodesD72.1

D72.1

Billable

Eosinophilia

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

Code Description

ICD-10 D72.1 is a billable code used to indicate a diagnosis of eosinophilia.

Key Diagnostic Point:

Eosinophilia is defined as an elevated eosinophil count in the blood, typically exceeding 500 eosinophils per microliter. Eosinophils are a type of white blood cell that play a crucial role in the body's immune response, particularly in combating parasitic infections and mediating allergic reactions. The condition can be classified as primary or secondary, with primary eosinophilia often linked to hematologic disorders such as eosinophilic leukemia, while secondary eosinophilia may arise from a variety of causes, including allergic diseases, infections, autoimmune disorders, and certain malignancies. Clinically, patients may present with symptoms related to the underlying cause, such as skin rashes, respiratory issues, or gastrointestinal disturbances. Eosinophilia can also be associated with splenic disorders, as the spleen plays a role in filtering blood and managing immune responses. In cases of neutropenia, where there is a deficiency of neutrophils, eosinophilia may be observed as a compensatory response. Accurate diagnosis often requires a thorough clinical evaluation, including a complete blood count (CBC) and additional tests to identify the underlying etiology.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes requiring differential diagnosis
  • Potential overlap with other white blood cell disorders
  • Need for comprehensive documentation of clinical findings
  • Variability in presentation based on underlying conditions

Audit Risk Factors

  • Inadequate documentation of eosinophil counts
  • Failure to document underlying conditions
  • Misuse of related codes leading to incorrect billing
  • Lack of clarity in clinical notes regarding symptoms

Specialty Focus

Medical Specialties

Hematology

Documentation Requirements

Detailed lab results showing eosinophil counts, patient history, and any relevant treatments.

Common Clinical Scenarios

Patients presenting with unexplained eosinophilia, requiring further investigation for hematologic malignancies.

Billing Considerations

Ensure that all lab results are clearly documented and correlate with clinical findings to support the diagnosis.

Allergy and Immunology

Documentation Requirements

Comprehensive allergy testing results, patient history of allergic reactions, and treatment plans.

Common Clinical Scenarios

Patients with allergic conditions presenting with elevated eosinophil counts, necessitating management of both eosinophilia and allergies.

Billing Considerations

Documenting the relationship between eosinophilia and allergic symptoms is crucial for accurate coding.

Coding Guidelines

Inclusion Criteria

Use D72.1 When
  • According to ICD
  • 10 coding guidelines, D72
  • 1 should be used when eosinophilia is confirmed through laboratory testing
  • It is essential to document the clinical context and any associated conditions to ensure accurate coding

Exclusion Criteria

Do NOT use D72.1 When
  • Exclusion criteria include conditions that specifically cause eosinophilia but are classified under different codes

Related ICD-10 Codes

Related CPT Codes

85025CPT Code

Complete blood count (CBC) with differential

Clinical Scenario

Used to confirm eosinophilia and assess overall white blood cell count.

Documentation Requirements

Ensure lab results are included in the patient's medical record.

Specialty Considerations

Hematologists may require additional tests to determine the cause of eosinophilia.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of eosinophilia, improving the ability to track and manage this condition in clinical practice. It emphasizes the importance of documenting the underlying causes and associated symptoms.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of eosinophilia, improving the ability to track and manage this condition in clinical practice. It emphasizes the importance of documenting the underlying causes and associated symptoms.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of eosinophilia, improving the ability to track and manage this condition in clinical practice. It emphasizes the importance of documenting the underlying causes and associated symptoms.

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 is the significance of eosinophilia?

Eosinophilia can indicate various underlying conditions, including allergic reactions, infections, and hematologic disorders. It is essential to identify the cause to provide appropriate treatment.