Posted Date
Effective Date
Test Name
Dilute Russell's Viper Venom Test
Update Type
Reference range changed
CPT Code
85613
Order Code
DRVVT
REFERENCE RANGE CHANGE
Dilute Russell’s Viper Venom Test
Order Code: DRVVT
Fee Code: 31143 (CPT 85613)
Effective February 24, 2025, the reference range for the Dilute Russell’s Viper Venom Test (DRVVT) was changed due to a change in reagent lot:
Reference Range: <44.2 seconds