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ICD-10 Coding for Reactive Thrombocytosis(D75.81)

Complete ICD-10-CM coding and documentation guide for Reactive Thrombocytosis. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Secondary ThrombocytosisThrombocytosis due to underlying condition

Related ICD-10 Code Ranges

Complete code families applicable to Reactive Thrombocytosis

D70-D77Primary Range

Other diseases of blood and blood-forming organs

This range includes codes for various blood disorders, including reactive thrombocytosis.

Key Information: ICD-10 code for reactive thrombocytosis

Essential facts and insights about Reactive Thrombocytosis

The ICD-10 code for reactive thrombocytosis is D75.81, used when thrombocytosis is secondary to another condition.

Primary ICD-10-CM Code for reactive thrombocytosis

Other specified diseases of blood and blood-forming organs | Secondary thrombocytosis
Billable Code

Decision Criteria

clinical Criteria

  • Platelet count >450,000/microL with elevated CRP and absence of primary markers.

documentation Criteria

  • Documented as secondary to a specific condition.

Applicable To

  • Reactive thrombocytosis

Excludes

  • Essential thrombocythemia (D47.3)
  • Polycythemia vera (D45)

Clinical Validation Requirements

  • Platelet count >450,000/microL
  • CRP >1.0 mg/dL
  • Absence of JAK2/CALR mutations

Code-Specific Risks

  • Misclassification as primary thrombocytosis
  • Incorrect sequencing with underlying condition

Coding Notes

  • Ensure documentation specifies 'reactive' or 'secondary' thrombocytosis.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Iron deficiency anemia

D50.9
Use when thrombocytosis is secondary to iron deficiency anemia.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Essential thrombocythemia

D47.3
Presence of JAK2/CALR mutations and bone marrow hyperplasia.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Reactive Thrombocytosis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code D75.81.

Impact

Clinical: May lead to inappropriate treatment decisions., Regulatory: Non-compliance with documentation standards., Financial: Potential for denied claims or reduced reimbursement.

Mitigation Strategy

Educate providers on the importance of specifying 'reactive' or 'primary'.

Impact

Reimbursement: May lead to lower reimbursement if not coded correctly., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation Strategy

Query provider for specific underlying condition causing thrombocytosis.

Impact

Failure to document the underlying cause of thrombocytosis.

Mitigation Strategy

Implement provider education and regular audits.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Reactive Thrombocytosis, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Reactive Thrombocytosis

Use these documentation templates to ensure complete and accurate documentation for Reactive Thrombocytosis. These templates include all required elements for proper coding and billing.

Reactive thrombocytosis due to recent surgery

Specialty: Surgery

Required Elements

  • Underlying condition
  • Platelet count
  • CRP levels
  • Exclusion of primary causes

Example Documentation

Thrombocytosis secondary to recent CABG surgery, platelet count 600,000/microL, JAK2 negative.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Elevated platelets, monitor.
Good Documentation Example
Reactive thrombocytosis secondary to CABG, platelet 600k/µL, JAK2 negative.
Explanation
The good example specifies the cause and provides necessary lab values.

Need help with ICD-10 coding for Reactive Thrombocytosis? Ask your questions below.

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