Summary & Overview
CPT 0115U: ePlex Respiratory Pathogen Panel, 20-Target Multiplex
CPT code 0115U denotes a Proprietary Laboratory Analyses (PLA) test for the ePlex® Respiratory Pathogen (RP) Panel from GenMark Diagnostics, an automated multiplex nucleic acid assay that identifies 20 common respiratory pathogens from nasopharyngeal specimens. As a PLA code, 0115U is specific to one manufacturer’s assay and is used to report that unique test across billing systems. Nationally, molecular respiratory panels like this are important for pathogen identification, infection control, and clinical decision-making, particularly during respiratory virus seasons and outbreaks.
Key payers covered in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical purpose and service setting for 0115U, plus an outline of common coverage considerations and benchmarks where available. The publication summarizes payer coverage patterns, coding guidance for laboratory reporting, and clinical context for use of multiplex respiratory testing. Data not available in the input is noted where applicable, such as payer-specific reimbursement rates, associated taxonomies, and ICD-10 diagnosis mappings.
Billing Code Overview
CPT code 0115U is a Proprietary Laboratory Analyses (PLA) code for the ePlex® Respiratory Pathogen (RP) Panel (ePlex RP® panel) from GenMark Diagnostics, Inc. The test is an automated molecular multiplexed nucleic acid diagnostic performed on a nasopharyngeal specimen to detect a total of 20 common respiratory pathogens (18 viral and 2 bacterial) in patients suspected of respiratory tract infections.
Service type: Automated molecular multiplex nucleic acid diagnostic testing.
Typical site of service: Clinical laboratory or hospital laboratory that performs high-complexity molecular testing on nasopharyngeal specimens.
Clinical & Coding Specifications
Clinical Context
A symptomatic adult or pediatric patient presents to an outpatient clinic, urgent care, emergency department, or hospital with acute respiratory symptoms such as fever, cough, nasal congestion, sore throat, dyspnea, or hypoxia. The clinician suspects a viral or bacterial respiratory infection and orders a multiplex nucleic acid amplification test to identify common respiratory pathogens rapidly. A nasopharyngeal swab is collected per facility infection-control procedures and sent to the laboratory. The laboratory performs the GenMark Diagnostics ePlex® Respiratory Pathogen (RP) Panel, reported with CPT code 0115U, which simultaneously detects 18 viral and 2 bacterial targets. Results are returned to the ordering clinician to inform infection-control decisions, antiviral or antibiotic selection, cohorting, and disposition (discharge, admission, or isolation). Typical sites of service include outpatient clinics, urgent care centers, emergency departments, and inpatient hospital laboratories. Patient scenarios include seasonal influenza-like illness, suspected COVID-19 with atypical presentation, bronchiolitis in infants, or immunocompromised patients with unexplained respiratory symptoms where comprehensive pathogen identification affects management and isolation precautions.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier required / default | General reporting when no special circumstance modifier applies |