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ICD-10 Guide
ICD-10 CodesD73.9

D73.9

Billable

Disease of spleen, unspecified

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

Code Description

ICD-10 D73.9 is a billable code used to indicate a diagnosis of disease of spleen, unspecified.

Key Diagnostic Point:

D73.9 refers to unspecified diseases of the spleen, which can encompass a variety of conditions affecting the organ's structure and function. The spleen plays a crucial role in the immune system, filtering blood and recycling iron from red blood cells. Diseases of the spleen can lead to complications such as splenomegaly (enlargement of the spleen), hypersplenism (overactivity of the spleen), and can be associated with various hematological disorders, including neutropenia and other white blood cell disorders. Neutropenia, characterized by an abnormally low level of neutrophils, can result from splenic dysfunction, leading to increased susceptibility to infections. Additionally, splenic disorders can be linked to immunodeficiencies, where the body's ability to fight infections is compromised. Accurate diagnosis and coding require a thorough understanding of the underlying conditions, as the spleen's health is often indicative of systemic diseases. This code is used when the specific nature of the spleen disease is not documented, necessitating careful clinical evaluation to determine the underlying cause.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation of spleen diseases
  • Need for comprehensive patient history to determine underlying causes
  • Potential overlap with other hematological disorders
  • Documentation may lack specificity regarding the spleen condition

Audit Risk Factors

  • Insufficient documentation of the spleen condition
  • Inconsistent clinical findings in patient records
  • Lack of follow-up on splenic disease management
  • Use of unspecified codes without adequate justification

Specialty Focus

Medical Specialties

Hematology

Documentation Requirements

Detailed lab results, patient history, and treatment plans must be documented.

Common Clinical Scenarios

Patients presenting with neutropenia or other blood disorders requiring splenic evaluation.

Billing Considerations

Ensure that the relationship between splenic disease and hematological conditions is clearly articulated.

Immunology

Documentation Requirements

Immunological assessments and history of infections should be documented.

Common Clinical Scenarios

Patients with recurrent infections or known immunodeficiencies needing splenic evaluation.

Billing Considerations

Document any immunodeficiency syndromes that may relate to splenic function.

Coding Guidelines

Inclusion Criteria

Use D73.9 When
  • According to ICD
  • 10 guidelines, D73
  • 9 should be used when the specific disease of the spleen is not documented
  • Coders should ensure that all relevant clinical information is captured to support the use of this unspecified code

Exclusion Criteria

Do NOT use D73.9 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 blood cell counts in patients with suspected splenic disease.

Documentation Requirements

Document the reason for the CBC and any relevant findings.

Specialty Considerations

Hematologists should ensure correlation between CBC results and splenic function.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding, but D73.9 remains a common code due to the variability in clinical presentations of splenic diseases. Coders must be diligent in ensuring that the use of this code is justified by the clinical documentation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding, but D73.9 remains a common code due to the variability in clinical presentations of splenic diseases. Coders must be diligent in ensuring that the use of this code is justified by the clinical documentation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding, but D73.9 remains a common code due to the variability in clinical presentations of splenic diseases. Coders must be diligent in ensuring that the use of this code is justified by the clinical documentation.

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

When should I use D73.9?

D73.9 should be used when the specific disease of the spleen is not documented, and the clinical evaluation does not provide a more specific diagnosis.