85366 Fibrinogen test
Also known as: fibrinogen assay, plasma fibrinogen
Quantitative assay of fibrinogen concentration in plasma using clotting methodology (Clauss method) where diluted plasma is clotted with thrombin and clotting time converted to concentration.
In Plain Language
blood clotting protein test; fibrinogen level
Clinical Context
Evaluates hypofibrinogenemia in disseminated intravascular coagulation, liver disease, or congenital deficiency; monitors fibrinogen replacement therapy.
RVU Information
CPT 85366 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 85366?
CPT 85366 (Fibrinogen test) is a Pathology & Lab code. Quantitative assay of fibrinogen concentration in plasma using clotting methodology (Clauss method) where diluted plasma is clotted with thrombin and clotting time converted to concentration.
Who uses CPT code 85366?
CPT 85366 is used by Clinical Pathology, Coagulation, Hematology. Evaluates hypofibrinogenemia in disseminated intravascular coagulation, liver disease, or congenital deficiency; monitors fibrinogen replacement therapy.
When is CPT 85366 used?
Evaluates hypofibrinogenemia in disseminated intravascular coagulation, liver disease, or congenital deficiency; monitors fibrinogen replacement therapy.
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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.