85705 Thromboplastin inhibition
Also known as: Inhibitor screen, LA screen
Thromboplastin inhibition test identifies and measures inhibitors (particularly lupus anticoagulant) that prolong the activated partial thromboplastin time by preventing thromboplastin function.
In Plain Language
Anticoagulant substance detection; Bleeding inhibitor test
Clinical Context
Essential screening test for lupus anticoagulant in patients with prolonged activated partial thromboplastin time. Used in thrombosis evaluation and antiphospholipid syndrome diagnosis.
RVU Information
CPT 85705 does not have a physician work RVU assigned by CMS. Reimbursement for this code is determined by payer-specific fee schedules.
Billing & Documentation
Lab and pathology codes require an order from the treating provider with clinical indication. For molecular pathology and genetic testing, document the specific analytes tested and clinical rationale.
How This Code Compares
This code has a work RVU of 0.00, meaning it does not have a physician work component assigned by CMS. In the Pathology & Lab category, 94% of codes share this characteristic.
Specialties
Frequently Asked Questions
What is CPT code 85705?
CPT 85705 (Thromboplastin inhibition) is a Pathology & Lab code. Thromboplastin inhibition test identifies and measures inhibitors (particularly lupus anticoagulant) that prolong the activated partial thromboplastin time by preventing thromboplastin function.
Who uses CPT code 85705?
CPT 85705 is used by Hemostasis/Thrombosis, Hematology, Clinical Pathology. Essential screening test for lupus anticoagulant in patients with prolonged activated partial thromboplastin time. Used in thrombosis evaluation and antiphospholipid syndrome diagnosis.
When is CPT 85705 used?
Essential screening test for lupus anticoagulant in patients with prolonged activated partial thromboplastin time. Used in thrombosis evaluation and antiphospholipid syndrome diagnosis.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.