Summary & Overview
CPT 85396: Evaluation of Ongoing Coagulation/Fibrinolysis Monitoring
CPT code 85396 denotes a practitioner’s evaluation of ongoing monitoring of coagulation and fibrinolysis in whole blood for all or part of one day. The code captures clinical assessment linked to serial or continuous hemostasis testing in acute care settings and is relevant where anticoagulation management, bleeding assessment, or transfusion decisions depend on dynamic whole-blood measurements. Nationally, this code matters for accurate reporting of clinician time and clinical oversight associated with advanced bedside or laboratory-based hemostasis monitoring.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for billing 85396, the typical sites of service where the evaluation occurs, and the types of clinical scenarios that prompt its use. The publication summarizes expected benchmarks and reimbursement considerations at a programmatic level, highlights relevant policy and coding updates affecting documentation and claim submission, and clarifies how this code fits into laboratory and inpatient service lines. Clinical context covers the role of serial whole-blood coagulation/fibrinolysis testing in managing anticoagulation, monitoring thrombotic or bleeding risk, and informing urgent treatment decisions. Data not available in the input is noted where specific payer coverage determinations, associated taxonomies, and ICD-10 mappings are not provided.
Billing Code Overview
CPT code 85396 describes evaluation of ongoing monitoring of coagulation and fibrinolysis in whole blood for all or part of one day. This service reflects a practitioner’s assessment of serial or continuous hemostasis testing performed over the course of a day to evaluate clotting function, bleeding risk, or response to anticoagulant or procoagulant therapy.
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Service type: Clinical laboratory evaluation/monitoring
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Typical site of service: Hospital laboratory, inpatient unit, intensive care unit, or other acute care settings where continuous or repeated whole-blood hemostasis monitoring is performed
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Clinical & Coding Specifications
Clinical Context
A typical patient is an adult admitted to an inpatient medical ward or observed in an outpatient infusion center who requires ongoing evaluation of coagulation and fibrinolysis over a portion or the entirety of a single day. Common scenarios include monitoring anticoagulant therapy adjustments (unfractionated heparin infusion titration), assessing bleeding risk during active hemorrhage, perioperative coagulation surveillance in high-risk surgical patients, or evaluating disseminated intravascular coagulation (DIC) in critically ill patients. The clinical workflow begins with the treating practitioner ordering serial whole-blood coagulation/fibrinolysis monitoring. A phlebotomy or point-of-care team obtains timed specimens throughout the day. Laboratory or point-of-care devices perform assays such as thromboelastography or rotational thromboelastometry, activated clotting time, or other whole-blood functional tests. The practitioner reviews serial results, documents interpretation and decisions (dose changes, transfusion triggers, procedural clearance), and bills 85396 to report evaluation and management of ongoing coagulation/fibrinolysis monitoring for all or part of one day.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the physician interpretation portion and the technical component is billed separately. |