CPT® Code 87636 is used to report laboratory testing for simultaneous detection of SARS-CoV-2 (COVID-19) and Influenza virus types A and B using nucleic acid amplification with a multiplex probe technique. This molecular test identifies viral RNA in respiratory specimens, providing rapid and accurate diagnosis for patients with respiratory symptoms or during outbreak monitoring.
Multiplex testing allows detection of multiple viral pathogens in a single assay, supporting timely clinical decisions and public health reporting.
Key Facts About CPT® 87636
Service type: Laboratory nucleic acid amplification test (NAAT), multiplex
Provider type: Physicians, qualified healthcare professionals, and laboratory personnel
Medical services included: Yes—detection of SARS-CoV-2 and influenza A/B viral RNA
Specimen type: Typically nasopharyngeal, nasal, or oropharyngeal swabs
Test method: Multiplex amplified probe nucleic acid technique
Common clinical indications:
- Patients presenting with respiratory symptoms consistent with COVID-19 or influenza
- Screening in high-risk settings such as hospitals or long-term care facilities
- Monitoring for co-circulating viral outbreaks during flu season
- Pre-procedural testing for infection control
- Evaluating and triaging symptomatic patients in emergency or urgent care settings
When to Use CPT® 87636
CPT 87636 is appropriate when:
- A multiplex nucleic acid amplification test for SARS-CoV-2 and Influenza A & B is ordered and performed
- The test is medically necessary for diagnosis, screening, or outbreak monitoring
- Specimens are collected from appropriate anatomical sites (nasopharyngeal, nasal, or oropharyngeal)
- Results are used to guide patient management, treatment decisions, or infection control measures
Examples:
- Testing a patient with fever, cough, and shortness of breath for both COVID-19 and influenza
- Screening healthcare workers during flu season and COVID-19 surges
- Pre-admission testing for hospital patients to prevent nosocomial infection
- Rapid identification of co-infection for targeted antiviral therapy
Documentation Requirements
To support CPT 87636 billing, documentation should include:
- Patient identifiers and date of service
- Specimen type and collection site
- Test method (multiplex nucleic acid amplification with probe technique)
- Clinical indication or medical necessity
- Test results, interpretation, and follow-up recommendations
- Ordering provider credentials and signature
- Laboratory performing the test
Thorough documentation ensures proper coding, reimbursement, and compliance with laboratory and public health requirements.
Reimbursement and Coding Considerations
- CPT 87636 is reimbursed as a multiplex molecular test for SARS-CoV-2 and influenza A & B
- Coverage depends on medical necessity, payer policies, and public health guidelines
- Each specimen and test performed must meet CPT code requirements for accurate reporting
- For multiple multiplex tests, code separately only if distinct specimens are tested
- Proper documentation is critical to support payer claims and public health reporting
Correct coding ensures reimbursement accuracy and adherence to regulatory standards.
How OptiMantra Supports Multiplex SARS-CoV-2 and Influenza Testing
OptiMantra’s integrated EMR and practice management system streamlines ordering, documentation, and billing for CPT 87636:
With OptiMantra, providers can:
- Order multiplex SARS-CoV-2 and influenza A/B tests directly from the patient chart
- Record specimen type, collection site, and testing method
- Document clinical indications, symptoms, and exposure history
- Capture and integrate results into the patient’s longitudinal record
- Support accurate CPT and ICD-10 code selection for compliant laboratory billing
By centralizing multiplex testing workflows, OptiMantra helps practices improve efficiency, maintain compliance, and optimize reimbursement.
Try OptiMantra for free here!
Disclaimer: CPT® codes are maintained by the American Medical Association. This guide is for informational purposes only and does not replace official coding guidelines or payer policies.
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