Summary & Overview
CPT 87531: HHV-6 Detection by Direct Nucleic Acid Probe
CPT code 87531 represents a molecular diagnostic assay that uses a direct nucleic acid probe to detect Human Herpesvirus 6 (HHV-6). This test supports clinical diagnosis of HHV-6–related illness, including roseola in children and more severe presentations in immunocompromised adults. Molecular detection of HHV-6 has national clinical relevance for timely diagnosis and infection management pathways in both inpatient and outpatient settings.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for HHV-6 testing, the typical service setting, and the elements that influence billing and coverage decisions for molecular infectious disease assays. The publication summarizes common modifiers associated with laboratory services and notes where input data are not available.
This document is intended to inform billing staff, laboratory managers, and policy analysts about the code’s clinical meaning, expected service environment, and the scope of payer coverage discussion. It highlights what readers can expect: benchmarks and coverage themes, relevant policy considerations for laboratory molecular testing, and the clinical scenarios that commonly prompt ordering of CPT code 87531.
Billing Code Overview
CPT code 87531 describes a laboratory test that detects Human Herpesvirus 6 (HHV-6) using a direct nucleic acid probe technique. The procedure identifies viral nucleic acid in patient specimens to support diagnosis of HHV-6 infection, a cause of roseola in children and potential serious disease in immunocompromised adults.
Service Type: Infectious disease molecular diagnostic test
Typical Site of Service: Clinical laboratory or hospital laboratory (inpatient or outpatient specimen processing)
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A pediatric patient aged 8 months presents to an outpatient infectious disease clinic with high fever for 3 days followed by sudden onset of a blanching maculopapular rash and decreased oral intake. The clinician performs a history and physical, documents concern for roseola (exanthem subitum) and obtains a viral specimen (usually blood or cerebrospinal fluid if neurologic symptoms are present) to evaluate for human herpesvirus 6. The specimen is sent to the hospital molecular laboratory; a laboratory analyst performs a direct nucleic acid probe test for Herpes virus 6 using automated molecular equipment.
The typical workflow: the clinician collects the specimen, labels it with patient identifiers and clinical indication, and sends it with a test order for 87531. The laboratory accessioning team logs the specimen, the molecular technologist or lab analyst processes nucleic acid extraction, runs the direct probe hybridization assay, interprets results, and posts a report to the electronic medical record. Results are routed to the ordering clinician for treatment decisions and infection-control measures if needed.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the professional interpretation component of a laboratory test if applicable (rare for molecular assays performed entirely by lab). |