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v1.0.0
ICD-10 Guide
ICD-10 CodesD75.838

D75.838

Billable

Other thrombocytosis

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

Code Description

ICD-10 D75.838 is a billable code used to indicate a diagnosis of other thrombocytosis.

Key Diagnostic Point:

Thrombocytosis refers to an elevated platelet count in the blood, which can occur due to various underlying conditions. The term 'other thrombocytosis' encompasses cases that do not fit into the more common categories of primary or secondary thrombocytosis. This condition can be associated with a range of hematological disorders, including myeloproliferative neoplasms, inflammatory states, and certain malignancies. In the context of neutropenia and white blood cell disorders, thrombocytosis may arise as a compensatory mechanism in response to low white blood cell counts or as a result of bone marrow dysregulation. Spleen disorders, such as splenectomy or hypersplenism, can also influence platelet counts, leading to thrombocytosis. Additionally, immunodeficiencies may contribute to abnormal hematopoiesis, resulting in elevated platelet levels. Accurate diagnosis and management of the underlying cause are crucial, as thrombocytosis can increase the risk of thrombotic events, necessitating careful monitoring and potential therapeutic interventions.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying conditions leading to thrombocytosis
  • Differentiation from primary and secondary thrombocytosis
  • Potential overlap with other hematological disorders
  • Need for comprehensive patient history and laboratory results

Audit Risk Factors

  • Inadequate documentation of underlying conditions
  • Misclassification of thrombocytosis type
  • Failure to link thrombocytosis with relevant clinical findings
  • Inconsistent use of laboratory results

Specialty Focus

Medical Specialties

Hematology

Documentation Requirements

Detailed laboratory results, patient history, and treatment plans.

Common Clinical Scenarios

Patients presenting with elevated platelet counts, often in conjunction with other blood disorders.

Billing Considerations

Ensure clear documentation of the underlying cause of thrombocytosis to support coding.

Oncology

Documentation Requirements

Comprehensive cancer history, treatment regimens, and response to therapy.

Common Clinical Scenarios

Patients with malignancies that may cause secondary thrombocytosis.

Billing Considerations

Document any correlation between cancer treatment and changes in platelet counts.

Coding Guidelines

Inclusion Criteria

Use D75.838 When
  • According to ICD
  • 10 guidelines, D75
  • 838 should be used when thrombocytosis is not classified elsewhere
  • Coders must ensure that the underlying cause is documented and that other specific codes are not applicable

Exclusion Criteria

Do NOT use D75.838 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

85025CPT Code

Complete blood count (CBC) with differential

Clinical Scenario

Used to monitor platelet counts in patients with suspected thrombocytosis.

Documentation Requirements

Document the reason for the CBC and any relevant clinical findings.

Specialty Considerations

Hematologists may require additional tests to assess platelet function.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of thrombocytosis, improving the ability to capture the nuances of this condition and its underlying causes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of thrombocytosis, improving the ability to capture the nuances of this condition and its underlying causes.

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 difference between primary and secondary thrombocytosis?

Primary thrombocytosis is due to intrinsic bone marrow disorders, while secondary thrombocytosis is a reactive process resulting from other medical conditions such as infections, inflammation, or malignancies.