85613 Russell viper venom diluted
Also known as: diluted RVVT, diluted Russell viper test
Russell viper venom diluted test measures plasma clotting time after venom-induced Factor X activation with plasma dilution steps to confirm and differentiate lupus anticoagulant.
In Plain Language
Diluted anticoagulant test; Specialized clotting confirmation
Clinical Context
Confirmatory test for lupus anticoagulant diagnosis when screening test is prolonged. Dilution steps help differentiate inhibitors from factor deficiencies.
RVU Information
CPT 85613 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 85613?
CPT 85613 (Russell viper venom diluted) is a Pathology & Lab code. Russell viper venom diluted test measures plasma clotting time after venom-induced Factor X activation with plasma dilution steps to confirm and differentiate lupus anticoagulant.
Who uses CPT code 85613?
CPT 85613 is used by Hemostasis/Thrombosis, Hematology, Clinical Pathology. Confirmatory test for lupus anticoagulant diagnosis when screening test is prolonged. Dilution steps help differentiate inhibitors from factor deficiencies.
When is CPT 85613 used?
Confirmatory test for lupus anticoagulant diagnosis when screening test is prolonged. Dilution steps help differentiate inhibitors from factor deficiencies.
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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.