ICD-10 Coding for Thrombocytosis(D47.3, D75.81, D75.839)
Complete ICD-10-CM coding and documentation guide for Thrombocytosis. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Thrombocytosis
D47-D75Primary Range
Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
This range includes codes for various blood disorders, including thrombocytosis.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| D47.3 | Essential (primary) thrombocythemia | Use when essential thrombocythemia is confirmed through clinical and laboratory findings. |
|
| D75.81 | Secondary thrombocytosis | Use when thrombocytosis is secondary to another documented condition. |
|
| D75.839 | Unspecified thrombocytosis | Use when thrombocytosis is present but the cause is not specified or documented. |
|
Clinical Decision Support
Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.
Key Information: ICD-10 code for essential thrombocythemia
Essential facts and insights about Thrombocytosis
Primary ICD-10-CM Codes for thrombocytosis
Decision Criteria
clinical Criteria
- Confirmed JAK2 mutation and absence of reactive causes.
Applicable To
- Essential thrombocythemia
- Primary thrombocytosis
Excludes
- Secondary thrombocytosis (D75.81)
Clinical Validation Requirements
- Platelet count >450,000/μL on 2+ occasions
- Bone marrow biopsy showing megakaryocytic hyperplasia
- Positive JAK2/CALR/MPL mutation
Code-Specific Risks
- Risk of incorrect coding if reactive causes are not excluded.
Coding Notes
- Ensure all reactive causes are ruled out before using this code.
D75.81 - Secondary thrombocytosis
Use when thrombocytosis is secondary to another documented condition.
Applicable To
- Reactive thrombocytosis
Excludes
- Essential thrombocythemia (D47.3)
Clinical Validation Requirements
- Link to underlying condition such as infection or iron deficiency.
Coding Notes
Always document the underlying condition causing the thrombocytosis.
D75.839 - Unspecified thrombocytosis
Use when thrombocytosis is present but the cause is not specified or documented.
Applicable To
- Thrombocytosis NOS
Clinical Validation Requirements
- Platelet count >450,000/μL without documented cause.
Coding Notes
Query the provider if the cause is suspected but not documented.
Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Thrombocytosis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code D47.3.
Impact
Clinical: May lead to inappropriate treatment., Regulatory: Non-compliance with coding standards., Financial: Potential for reduced reimbursement.
Mitigation Strategy
Always document the underlying condition causing thrombocytosis., Use templates to ensure comprehensive documentation.
Impact
Reimbursement: May lead to lower reimbursement due to unspecified coding., Compliance: Non-compliance with coding guidelines., Data Quality: Decreases the accuracy of health records.
Mitigation Strategy
Query the provider to specify the cause of thrombocytosis.
Impact
Using unspecified codes when specific causes are known.
Mitigation Strategy
Ensure thorough documentation of all relevant clinical findings and underlying conditions.
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 Thrombocytosis, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Thrombocytosis
Use these documentation templates to ensure complete and accurate documentation for Thrombocytosis. These templates include all required elements for proper coding and billing.
Hematology Consultation
Specialty: HematologyRequired Elements
- Diagnosis
- Clinical Findings
- Molecular Studies
- Bone Marrow Biopsy
- Secondary Causes Ruled Out
- Plan
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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