85635 Reptilase test
Also known as: Reptilase time, reptilase clotting time
Reptilase test measures plasma fibrin clotting time after reptilase (snake venom thrombin-like enzyme) addition, assessing fibrinogen quality and thrombin function independent of Factor V.
In Plain Language
Fibrinogen quality test; Specialized clotting test
Clinical Context
Used to evaluate fibrinogen function, diagnose dysfibrinogenemia, and differentiate fibrinogen defects from Factor V deficiency. Useful in assessing unexplained prolonged thrombin time.
RVU Information
CPT 85635 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 85635?
CPT 85635 (Reptilase test) is a Pathology & Lab code. Reptilase test measures plasma fibrin clotting time after reptilase (snake venom thrombin-like enzyme) addition, assessing fibrinogen quality and thrombin function independent of Factor V.
Who uses CPT code 85635?
CPT 85635 is used by Hemostasis/Thrombosis, Clinical Pathology, Hematology. Used to evaluate fibrinogen function, diagnose dysfibrinogenemia, and differentiate fibrinogen defects from Factor V deficiency. Useful in assessing unexplained prolonged thrombin time.
When is CPT 85635 used?
Used to evaluate fibrinogen function, diagnose dysfibrinogenemia, and differentiate fibrinogen defects from Factor V deficiency. Useful in assessing unexplained prolonged thrombin time.
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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.