ICD-10 Coding for Heparin-Induced Thrombocytopenia(D75.822, D75.821)
Complete ICD-10-CM coding and documentation guide for Heparin-Induced Thrombocytopenia. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Heparin-Induced Thrombocytopenia
D75.82-D75.829Primary Range
Heparin-Induced Thrombocytopenia
This range includes all specific codes for heparin-induced thrombocytopenia, differentiating between immune and non-immune types.
Adverse effect of heparin
This code is used as an ancillary code to indicate the adverse effect of heparin, which is essential for complete coding of HIT.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| D75.822 | Immune-mediated heparin-induced thrombocytopenia | Use when immune-mediated HIT is confirmed by laboratory tests. |
|
| D75.821 | Non-immune heparin-induced thrombocytopenia | Use when HIT is non-immune and resolves without intervention. |
|
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 immune-mediated HIT
Essential facts and insights about Heparin-Induced Thrombocytopenia
Primary ICD-10-CM Codes for hit
Decision Criteria
clinical Criteria
- Positive PF4 antibody test and significant platelet drop
Applicable To
- HIT Type II
Excludes
- Non-immune heparin-induced thrombocytopenia (D75.821)
Clinical Validation Requirements
- Positive PF4 antibody test
- Platelet count drop >50% from baseline
Code-Specific Risks
- Misclassification if not confirmed by lab tests
Coding Notes
- Ensure documentation includes lab confirmation and clinical presentation.
D75.821 - Non-immune heparin-induced thrombocytopenia
Use when HIT is non-immune and resolves without intervention.
Applicable To
- HIT Type I
Excludes
- Immune-mediated heparin-induced thrombocytopenia (D75.822)
Clinical Validation Requirements
- Transient platelet drop ≤72 hours after heparin exposure
Coding Notes
Document the timing and resolution of thrombocytopenia.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
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 Heparin-Induced Thrombocytopenia to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code D75.822.
Impact
Clinical: Misdiagnosis of HIT type., Regulatory: Non-compliance with coding standards., Financial: Potential loss of reimbursement.
Mitigation Strategy
Ensure all documentation links heparin use to platelet changes.
Impact
Reimbursement: May affect DRG assignment and reimbursement rates., Compliance: Leads to non-compliance with coding guidelines., Data Quality: Reduces accuracy of clinical data.
Mitigation Strategy
Ensure documentation specifies the type of HIT for accurate coding.
Impact
High risk of audit if unspecified codes are used when specific ones apply.
Mitigation Strategy
Ensure documentation specifies HIT type and supporting lab results.
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 Heparin-Induced Thrombocytopenia, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Heparin-Induced Thrombocytopenia
Use these documentation templates to ensure complete and accurate documentation for Heparin-Induced Thrombocytopenia. These templates include all required elements for proper coding and billing.
Immune-mediated HIT with thrombosis
Specialty: HematologyRequired Elements
- Platelet count drop
- Positive PF4 antibody test
- Thrombosis documentation
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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