ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesD72.18

D72.18

Billable

Eosinophilia in diseases classified elsewhere

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

Code Description

ICD-10 D72.18 is a billable code used to indicate a diagnosis of eosinophilia in diseases classified elsewhere.

Key Diagnostic Point:

Eosinophilia refers to an elevated eosinophil count in the blood, which can occur in various diseases classified elsewhere in the ICD-10 system. This condition is often associated with allergic reactions, parasitic infections, autoimmune diseases, and certain malignancies. 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. When eosinophil levels rise, it can indicate an underlying condition that may require further investigation. In the context of neutropenia, eosinophilia can complicate the clinical picture, as both conditions involve white blood cell abnormalities. Disorders of the spleen, such as splenomegaly or hypersplenism, can also influence eosinophil levels, as the spleen plays a role in filtering blood and managing immune responses. Additionally, immunodeficiencies may lead to abnormal eosinophil counts, as the body's ability to respond to infections and other stimuli is compromised. Accurate coding of eosinophilia in these contexts requires a thorough understanding of the underlying conditions and their implications for patient management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of multiple underlying conditions
  • Differentiation from other white blood cell disorders
  • Potential overlap with other eosinophilia-related codes
  • Need for precise documentation of associated diseases

Audit Risk Factors

  • Inadequate documentation of underlying conditions
  • Misclassification of eosinophilia type
  • Failure to link eosinophilia to specific diseases
  • Inconsistent lab results not supported by clinical findings

Specialty Focus

Medical Specialties

Hematology

Documentation Requirements

Detailed lab results, patient history, and treatment plans must be documented to support the diagnosis of eosinophilia.

Common Clinical Scenarios

Patients presenting with unexplained eosinophilia, requiring further investigation for potential malignancies or autoimmune disorders.

Billing Considerations

Consideration of the patient's complete blood count (CBC) and differential is essential for accurate coding.

Allergy and Immunology

Documentation Requirements

Documentation of allergic reactions, exposure history, and response to treatments is critical.

Common Clinical Scenarios

Patients with allergic conditions presenting with elevated eosinophil counts, necessitating evaluation for potential underlying causes.

Billing Considerations

Allergy testing results and clinical correlation with eosinophilia must be clearly documented.

Coding Guidelines

Inclusion Criteria

Use D72.18 When
  • According to ICD
  • 10 guidelines, D72
  • 18 should be used when eosinophilia is documented in the context of another disease
  • Coders must ensure that the underlying condition is clearly identified and documented in the medical record

Exclusion Criteria

Do NOT use D72.18 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

85025CPT Code

Complete blood count (CBC) with differential

Clinical Scenario

Used to evaluate eosinophil levels in patients presenting with symptoms suggestive of eosinophilia.

Documentation Requirements

Documentation must include the reason for the CBC and any relevant clinical findings.

Specialty Considerations

Hematology specialists may require additional tests to assess 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, enabling better tracking of the condition in relation to other diseases. This specificity aids in research and improves patient management by allowing for targeted treatment strategies.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of eosinophilia, enabling better tracking of the condition in relation to other diseases. This specificity aids in research and improves patient management by allowing for targeted treatment strategies.

Reimbursement & Billing Impact

reimbursement.

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 in clinical practice?

Eosinophilia can indicate a variety of underlying conditions, including allergic reactions, infections, and malignancies. Understanding the cause is crucial for appropriate management and treatment.