Summary & Overview
CPT 0600U: Molecular Wound Infection PCR Test
CPT code 0600U is a PLA (Proprietary Laboratory Analyses) code that designates the FidaLab Molecular Wound Infection Test, a real-time PCR assay for detecting up to 65 potential wound pathogens and 30 antibiotic resistance genes from a wound swab. PLA codes are single-source, manufacturer- or lab-specific codes and are important because they identify unique, proprietary diagnostics that can affect clinical decision-making for complex wound infections and antimicrobial stewardship. Nationally, molecular wound diagnostics are increasingly relevant as clinicians seek rapid, actionable organism and resistance information.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication summarizes payer coverage patterns, coding and billing considerations for PLA testing, and the clinical context for molecular wound testing. Readers will find an explanation of the test and service setting, high-level benchmarks for utilization and coverage where available, summaries of recent policy or coverage updates affecting proprietary molecular diagnostics, and guidance on clinical use cases and documentation expectations. Data not available in the input is noted where applicable; the focus remains on nationally relevant implications for billing, clinical interpretation, and payer engagement for CPT code 0600U.
Billing Code Overview
CPT code 0600U is a Proprietary Laboratory Analyses (PLA) code that applies exclusively to the FidaLab Molecular Wound Infection Test from FidaLab LLC. The test uses real-time polymerase chain reaction (PCR) on a wound swab sample to identify the genetic material of up to 65 organisms (bacteria, fungi, and other wound pathogens) and to detect 30 antibiotic resistance genes. Each organism tested is reported as positive or negative.
Service type: Molecular diagnostic laboratory test (proprietary PLA test)
Typical site of service: Clinical laboratory or reference laboratory processing wound swab samples
Clinical & Coding Specifications
Clinical Context
A typical patient is a 58-year-old with a non-healing diabetic foot ulcer who presents to a wound care clinic for evaluation after empiric antibiotics fail to improve wound appearance. The clinician obtains a wound swab during the same visit and orders a molecular diagnostic test, the FidaLab Molecular Wound Infection Test (0600U), to rapidly identify bacterial, fungal, and other organisms and detect antibiotic resistance genes. The workflow: history and wound assessment by a podiatrist or wound care specialist; wound cleaning and sample collection using a standardized swab technique; specimen sent to FidaLab for real-time PCR analysis; laboratory returns a report listing each of 65 organisms as positive/negative and presence or absence of 30 resistance genes; clinician reviews results to inform targeted antimicrobial therapy, debridement planning, and referral if unusual pathogens or resistance patterns are identified. Typical sites of service include outpatient wound care clinics, podiatry clinics, dermatology clinics, infectious disease clinics, urgent care centers, and hospital outpatient laboratories. The service type is a proprietary molecular diagnostic laboratory test (Proprietary Laboratory Analyses - PLA).
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When billing for the physician interpretation portion separately from the laboratory technical component (rare for PLA tests). |