Summary & Overview

CPT 0007U: ToxProtect Urine Drug Screen with DNA Authentication

CPT code 0007U designates a Proprietary Laboratory Analyses (PLA) test for ToxProtect by Genotox Laboratories LTD: a combined presumptive urine drug screen with confirmatory testing for detected drugs plus DNA analysis of a buccal swab to authenticate the urine source. This PLA code is notable because it maps to a single manufacturer's test, which has implications for billing clarity, payer policy, and clinical documentation when source verification is required.

Key payers in the national analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides an overview of common payer coverage considerations, typical sites of service for collection and processing, and the clinical context in which source-authenticated toxicology testing is used.

Readers will learn what CPT code 0007U represents, why PLA codes matter for lab billing and prior authorization workflows, and how this combined toxicology-and-DNA test differs from standard drug screens. The report summarizes available benchmarking and policy themes relevant to lab providers and payers, highlights documentation and specimen requirements typically associated with source authentication testing, and identifies where additional payer-specific guidance or prior authorization may be expected. Data not available in the input will be flagged where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare0007UCPTProprietary Laboratory Analysestoxicologyurine drug screenDNA authenticationlaboratory testingclinical laboratoryspecimen verification

Billing Code Overview

CPT code 0007U is a Proprietary Laboratory Analyses (PLA) code that describes a single, manufacturer-specific laboratory test: ToxProtect by Genotox Laboratories LTD. The test is a presumptive urine drug screen with laboratory confirmation of any drugs identified, combined with a DNA analysis of a buccal (cheek) swab to authenticate the urine sample source.

Service type: Laboratory testing — combined toxicology screening with confirmatory testing and DNA source verification.

Typical site of service: Clinical laboratory or reference laboratory, with specimen collection occurring in outpatient or ambulatory collection settings (urine specimen and buccal swab collection).

Clinical & Coding Specifications

Clinical Context

A 28-year-old patient presents to an outpatient occupational medicine clinic after workplace suspicion of substance use. A urine sample is collected for a presumptive urine drug screen that includes confirmation testing for any identified substances. Because there is concern about specimen tampering or substitution, a buccal swab is collected at the same visit for DNA analysis to authenticate that the urine specimen originated from the patient. The clinic documents informed consent and chain-of-custody as required. The urine screen with reflex confirmation and the buccal swab for source authentication are sent to Genotox Laboratories LTD for processing under the proprietary test name ToxProtect. Typical workflow steps: patient registration and consent, specimen collection (urine and buccal swab), labeling and chain-of-custody documentation, sample shipment to the reference laboratory, laboratory presumptive immunoassay or screening, confirmatory testing (e.g., GC-MS or LC-MS/MS) on positives, DNA STR analysis for buccal swab and comparison to urine-derived DNA, and reporting of combined results to the ordering provider. Typical sites of service include outpatient clinics, occupational health centers, employer-directed testing sites, substance use treatment programs, and forensic collection centers.

Coding Specifications

Modifier	Description	When to Use
`00`	Standard reporting	Use when no specific modifier applies and full service is billed

Taxonomy Code	Specialty	Notes
207Q00000X	Clinical Pathology	Laboratory directors and clinical pathologists overseeing toxicology and DNA testing
207L00000X	Anatomic and Clinical Pathology	Pathologists involved in test validation and interpretation of confirmatory toxicology
2084P0800X	Occupational Medicine	Clinicians who order workplace-related drug testing and chain-of-custody collections
332B00000X	Forensic Toxicology	Forensic toxicologists and specialized labs performing confirmatory testing and specimen authentication
363A00000X	Medical Laboratory Technician/Technologist	Technologists who perform the assays and DNA authentication workflows

ICD-10 Code	Description	Clinical Relevance
`Z03.89`	Encounter for observation for other suspected diseases and conditions ruled out	Used when patient is observed for possible substance exposure and specimen authentication is needed
`Z13.89`	Encounter for screening for other disorder	Applicable when drug screening is ordered for surveillance or screening purposes (e.g., workplace)
`Z71.41`	Alcohol abuse counseling and surveillance of alcoholic	Relevant when monitoring for alcohol/substance use during treatment or counseling programs
`F11.20`	Opioid dependence, uncomplicated	Used when monitoring for relapse or adherence to treatment in opioid use disorder management
`R78.89`	Other specified abnormal findings of blood chemistry	Captures abnormal toxicology or unexpected laboratory findings prompting confirmatory testing and source authentication

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`0007U`	Proprietary PLA code: ToxProtect — presumptive urine drug screen with confirmation of identified drugs plus buccal swab DNA authentication of urine source	Primary billing code that describes the combined laboratory service provided by Genotox Laboratories LTD
`80305`	Drug screen, presumptive, any number of drug classes; any technique, capable of being read out visually (e.g., colorimetric), each patient encounter	May be used in facility or point-of-care settings for initial screening prior to sending specimens to reference lab when billed separately
`80307`	Drug screen, presumptive, any number of drug classes by instrumented analyzer, each patient encounter	Represents instrumented immunoassay screening methods that could precede confirmatory testing in workflow
`80320`	Confirmation test for drugs (e.g., GC-MS, LC-MS/MS), each separate drug class analyzed	Represents confirmatory testing methods used when the urine screen identifies substances requiring definitive confirmation
`81265`	DNA, short tandem repeat (STR) analysis, for human identification (example CPT for illustrative purpose)	Represents the type of DNA-based human identification testing used to authenticate specimen source; billing may vary and specific PLA covers this within `0007U`

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