ICD-10 Coding for Partial Thromboplastin Time(D68.32)
Complete ICD-10-CM coding and documentation guide for Partial Thromboplastin Time. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Partial Thromboplastin Time
D68.3-D68.4Primary Range
Coagulation defects
This range includes codes for conditions that may cause abnormal PTT results, such as hemophilia and other coagulation disorders.
Key Information: ICD-10 code for partial thromboplastin time
Essential facts and insights about Partial Thromboplastin Time
Primary ICD-10-CM Code for partial thromboplastin time
Decision Criteria
clinical Criteria
- Factor IX activity <40% and prolonged PTT
Applicable To
- Factor IX deficiency
Excludes
- Hemophilia A (D66)
Clinical Validation Requirements
- Factor IX activity <40%
- Prolonged PTT >70 seconds
Code-Specific Risks
- Misclassification if factor levels are not documented
Coding Notes
- Ensure documentation specifies factor IX levels and PTT results.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Long term (current) use of anticoagulants
Z79.01Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Lupus anticoagulant
D68.311Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Partial Thromboplastin Time to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code D68.32.
Impact
Clinical: May lead to inappropriate treatment decisions., Regulatory: Increased risk of audit findings., Financial: Potential claim denials.
Mitigation Strategy
Always specify the underlying condition causing abnormal results.
Impact
Reimbursement: Denial of claims due to lack of medical necessity., Compliance: Potential audit findings for improper billing., Data Quality: Inaccurate representation of patient care.
Mitigation Strategy
Provide medical necessity for both tests, such as warfarin overlap therapy.
Impact
Inadequate documentation of anticoagulant therapy can lead to audit issues.
Mitigation Strategy
Ensure all anticoagulant use is documented with therapeutic goals and 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 Partial Thromboplastin Time, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Partial Thromboplastin Time
Use these documentation templates to ensure complete and accurate documentation for Partial Thromboplastin Time. These templates include all required elements for proper coding and billing.
Monitoring Heparin Therapy
Specialty: HematologyRequired Elements
- Indication for test
- Current medication and dosage
- PTT result and reference range
- Clinical decision based on result
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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