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Presumptive drug testing services may be performed prior to definitive drug screen testing (80320-80377), when a provider wants to rule out illicit drug uses or to confirm the presence of a particular drug class without identifying individual drugs; or, to distinguish between structural isomers.


Definitive testing is used when a presumptive test for a drug or drug class is not available Data shows that when performing this 2-step presumptive with definitive testing approach, we find that on average only 2.5 drugs need to be reflexed to definitive, which maximizes patient care while minimizing costs.


Definitive Drug Testing includes 59 new, definitive drug testing codes, arranged by drug classes. You can refer to the Definitive Drug Classes Listing table for drugs and metabolites included in each definitive drug class. Table B breaks down the 2015 Presumptive and Definitive Drug Testing CPT® codes further.


“presumptive” testing) and “quantitative” or “definitive” testing that identifies the specific drug and quantity in the patient. Beginning January 1, 2017, presumptive drug testing may be reported with CPT codes 80305-80307. These codes differ based on the level of complexity of the testing methodology. Only


Testing for Drugs of Abuse Covered Services. Providers are required to use HCPCS Level I and Level II procedure codes 80305–80307, G0480–G0483, and code G0659 when submitting claims for testing for drugs of abuse. Codes 80305–80307, G0480–G0483, and G0659 consist of two primary categories of drug testing: presumptive and definitive.


Most people who take a drug test take a presumptive test, cheaper and faster than other methods of testing. However, it is less accurate and can render false results. The FDA recommends for confirmatory testing to be conducted and the placing of a warning label on the presumptive drug test: "This assay provides only a preliminary result.


Urine Drug Testing (UDT, also known as Urine Drug Screening, or UDS) is performed to detect the presence in the urine of prescription medications and illegal substances for the purpose of medical ... Routine or reflex presumptive or definitive urine drug testing (e.g., testing without


This is different than qualitative testing, also known as point of contact or presumptive testing, which identifies drug classifications, such as opiates, muscle relaxants, anti-depressants, etc., but not specific drugs, and is a lot less expensive.


The March 23, 2018 blog, Looking for UDM Guidelines? Urine Luck indeed presented some very useful information, including Difference between presumptive and definitive drug testing. The difference between presumptive testing (by immunoassay) which is cheaper but less precise, and definitive testing (by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry ...


•Provides an overview of presumptive urine drug testing (UDT) and definitive UDT testing by various methodologies •This policy addresses UDT for Medicare patients only Definitions As used in this document, the following terminology relates to the basic forms of UDT: 1.