85420 Fibrinolytic plasminogen
Also known as: plasminogen activity, functional plasminogen
Measurement of plasminogen activity in plasma using chromogenic substrate or amidolytic methodology distinct from immunologic antigen measurement.
In Plain Language
fibrinolytic enzyme precursor activity; plasminogen function test
Clinical Context
Provides functional assessment of plasminogen versus antigen measurement; may detect dysfunctional plasminogen variants.
RVU Information
CPT 85420 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 85420?
CPT 85420 (Fibrinolytic plasminogen) is a Pathology & Lab code. Measurement of plasminogen activity in plasma using chromogenic substrate or amidolytic methodology distinct from immunologic antigen measurement.
Who uses CPT code 85420?
CPT 85420 is used by Clinical Pathology, Coagulation, Hematology. Provides functional assessment of plasminogen versus antigen measurement; may detect dysfunctional plasminogen variants.
When is CPT 85420 used?
Provides functional assessment of plasminogen versus antigen measurement; may detect dysfunctional plasminogen variants.
Track This Code in RVU Edge
Log procedures, calculate wRVUs, and benchmark against national data — all in one app.
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.